Dedicated to the military history and civilization of the Eastern Roman Empire (330 to 1453)

"Time in its irresistible and ceaseless flow carries along on its flood all created things and drowns them in the depths of obscurity."

- - - - Princess Anna Comnena (1083–1153) - Byzantine historian

Monday, January 15, 2018

Byzantium Invades The Kingdom of Italy - The Gothic War Begins

Goth Warriors
Adding Rome back into
the Roman Empire

The Gothic War between the Eastern Roman Empire and the Ostrogothic Kingdom of Italy took place from 535 until 554. The war had its roots in the ambition of the East Roman Emperor Justinian I to recover the provinces of the former Western Roman Empire, which the Romans had lost to invading barbarian tribes in the previous century.

In 533, utilizing a dynastic dispute, Justinian had sent his most talented general, Belisarius, to recover the North African provinces held by the Vandals. The Vandalic War produced an unexpectedly swift and decisive victory for the Roman Empire. 

Now another dynastic dispute gave Justinian an excuse to invade Italy. Amalasuntha (c. 495 – 30 April 534/535) was a regent of the Ostrogoths during the minority of her son from 526 to 534, and ruling queen regnant from 534 to 535. Amalasuntha had allowed the Roman fleet to use the harbors of Sicily, which belonged to the Ostrogothic Kingdom, as bases of operation against the Vandals.

Seeking support, she chose her cousin Theodahad, to whom she offered the kingship. It was a fatal move, as Theodahad lost little time in having her arrested and then, in early 535, executed.

Through his agents, Justinian tried to save Amalasuntha's life, but to no avail. Her death, in any case, gave him cause for war with the Goths. As Procopius writes: "as soon as he learned what had happened to Amalasuntha, being in the ninth year of his reign, he entered upon war."

Command of the seas.  Initially at the start of Justinian's wars of re-conquest the Western Mediterranean was controlled by the fleet of the Vandal Kingdom in North Africa. With the collapse of the Vandals all of the Mediterranean from Palestine to the Pillars of Hercules became a Roman Lake.

The military importance of this control cannot be overstated. With the Vandals gone the Roman fleet was able to transport troops and supplies at will to almost any location. 

The navy allowed for the conquest and resupply of towns all along the North African coast, the capture of Corsica, Sardinia, the Balearic Islands and Spain.

The navy was a vital if unsung component in the Gothic War. In Dalmatia the navy was at the side of Roman land troops as they marched north.

In Sicily the navy was a major factor. The fleet transported 7,500 Roman troops, their horses, pack animals and supplies in an amphibious operation to capture a huge island from the Goths.

As always we are privileged to view events directly through the eyes of Procopius who was at the side of General Belisarius during these campaigns.

The Roman Navy was vital in the campaigns of reconquest.

By Procopius of Caesarea
500 - 554 AD

History of the Wars, Book V

Theodatus confined Amalasuntha and kept her under guard. But fearing that by this act he had given offence to the emperor, as actually proved to be the case, he sent some men of the Roman senate, Liberius and Opilio and certain others, directing them to excuse his conduct to the emperor with all their power by assuring him that Amalasuntha had met with no harsh treatment at his hands . . . 

And the emperor, upon learning what had befallen Amalasuntha, immediately entered upon the war, being in the ninth year of his reign. And he first commanded Mundus, the general of Illyricum, to go to Dalmatia, which was subject to the Goths, and make trial of Salones. 

The Emperor Justinian attacked the Ostrogothic Kingdom of Italy on two fronts at the same time. One army marched north from the Roman Balkan frontier invading the Gothic controlled Dalmatian coast.
As was done against the Vandals in Africa another Roman army was transported by the navy and mounted an amphibious operation landing in Sicily.

The Sicily Campaign
#1) Belisarius lands in Sicily the summer of 535.  #3) The conquest of Sicily is complete with the capture of Pamormus in December of 535.  #4) Belisarius sails to Carthage to put down a rebellion by the army (March-April 536).  #6) Belisarius crosses into Italy and captures Rhegium (June 536).  #8) Belisarius advances to Naples (Autumn 536).

Two Invasions

Now Mundus was by birth a barbarian, but exceedingly loyal to the cause of the emperor and an able warrior. 

Then he sent Belisarius by sea with four thousand soldiers from the regular troops and the foederati, and about three thousand of the Isaurians. 

And the commanders were men of note: Constantinus and Bessas from the land of Thrace, and Peranius from Iberia which is hard by Media, a man who was by birth a member of the royal family of the Iberians, but had before this time come as a deserter to the Romans through enmity toward the Persians; and the levies of cavalry were commanded by Valentinus, Magnus, and Innocentius, and the infantry by Herodian, Paulus, Demetrius, and Ursicinus, while the leader of the Isaurians was Ennes. And there were also two hundred Huns as allies and three hundred Moors. 

Emperor Justinian

But the general in supreme command over all was Belisarius, and he had with him many notable men as spearmen and guards. And he was accompanied also by Photius, the son of his wife Antonina by a previous marriage; he was still a young man wearing his first beard, but possessed the greatest discretion and shewed a strength of character beyond his years. 

And the emperor instructed Belisarius to give out that his destination was Carthage, but as soon as they should arrive at Sicily, they were to disembark there as it obliged for some reason to do so, and make trial of the island. And if it should be possible to reduce it to subjection without any trouble, they were to take possession and not let it go again; but if they should meet with any obstacle, they were to sail with all speed to Libya, giving no one an opportunity to perceive what their intention was.

And he also sent a letter to the leaders of the Franks as follows: "The Goths, having seized by violence Italy, which was ours, have not only refused absolutely to give it back, but have committed further acts of injustice against us which are unendurable and pass beyond all bounds. For this reason we have been compelled to take the field against them, and it is proper that you should join with us in waging this war, which is rendered yours as well as ours not only by the orthodox faith, which rejects the opinion of the Arians, but also by the enmity we both feel toward the Goths." Such was the emperor's letter; and making a gift of money to them, he agreed to give more as soon as they should take an active part. And they with all zeal promised to fight in alliance with him.

Now Mundus and the army under his command entered Dalmatia, and engaging with the Goths who encountered them there, defeated them in the battle and took possession of Salones. 

As for Belisarius, he put in at Sicily and took Catana. And making that place his base of operations, he took over Syracuse and the other cities by surrender without any trouble; except, indeed, that the Goths who were keeping guard in Panormus, having confidence in the fortifications of the place, which was a strong one, were quite unwilling to yield to Belisarius and ordered him to lead his army away from there with all speed. 

But Belisarius, considering that it was impossible to capture the place from the landward side, ordered the fleet to sail into the harbour, which extended right up to the wall. For it was outside the circuit-wall and entirely without defenders. 

Now when the ships had anchored there, it was seen that the masts were higher than the parapet. Straightway, therefore, he filled all the small boats of the ships with bowmen and hoisted them to the tops of the masts. And when from these boats the enemy were shot at from above, they fell into such an irresistible fear that they immediately delivered Panormus to Belisarius by surrender. 

As a result of this the emperor held all Sicily subject and tributary to himself. And at that time it so happened that there fell to Belisarius a piece of good fortune beyond the power of words to describe. For, having received the dignity of the consulship because of his victory over the Vandals, while he was still holding this honour, and after he had won the whole of Sicily, on the last day of his consulship, he marched into Syracuse, loudly applauded by the army and by the Sicilians and throwing golden coins to all. 

This coincidence, however, was not intentionally arranged by him, but it was a happy chance which befell the man, that after having recovered the whole of the island for the Romans he marched into Syracuse on that particular day; and so it was not in the senate house in Byzantium, as was customary, but there that he laid down the office of the consuls and so became an ex-consul. Thus, then, did good fortune attend Belisarius.

Belisarius and his Staff
(Johnny Shumates Portfolio)

Late Roman Infantry

#2) General Mundus conquers Dalmatia in the summer of 535.  #5) The Goths counter attack, Mundus is killed and the Roman army withdraws.  #7)  A new Roman army under Constantinianus drives the Goths out of Dalmatia in June-July 536 forcing them to fall back into Italy.

Roman Re-Conquest of Dalmatia

But meantime, while the emperor was engaged in these negotiations and these envoys were travelling to Italy, the Goths, under command of Asinarius and Gripas and some others, had come with a great army into Dalmatia. 

And when they had reached the neighbourhood of Salones, Mauricius, the son of Mundus, who was not marching out for battle but, with a few men, was on a scouting expedition, encountered them. A violent engagement ensued in which the Goths lost their foremost and noblest men, but the Romans almost their whole company, including their general Mauricius. 

And when Mundus heard of this, being overcome with grief at the misfortune and by this time dominated by a mighty fury, he went against the enemy without the least delay and regardless of order. The battle which took place was stubbornly contested, and the result was a Cadmean victory for the Romans. For although the most of the enemy fell there and their rout had been decisive, Mundus, who went on killing and following up the enemy wherever he chanced to find them and was quite unable to restrain his mind because of the misfortune of his son, was wounded by some fugitive or other and fell. 

Thereupon the pursuit ended and the two armies separated. And at that time the Romans recalled the verse of the Sibyl, which had been pronounced in earlier times and seemed to them a portent. For the words of the saying were that when Africa should be held, the "world" would perish together with its offspring. This, however, was not the real meaning of the oracle, but after intimating that Libya would be once more subject to the Romans, it added this statement also, that when that time came Mundus would perish together with his son. For it runs as follows: "Africa capta Mundus cum nato peribit." But since "mundus" in the Latin tongue has the force of "world," they thought that the saying had reference to the world. So much, then, for this. 

As for Salones, it was not entered by anyone. For the Romans went back home, since they were left altogether without a commander, and the Goths, seeing that not one of their nobles was left them, fell into fear and took possession of the strongholds in the neighbourhood; for they had no confidence in the defences of Salones, and, besides, the Romans who lived there were not very well disposed towards them.

But when the Emperor Justinian heard these things and what had taken place in Dalmatia, he sent Constantianus, who commanded the royal grooms, into Illyricum, bidding him gather an army from there and make an attempt on Salones, in whatever manner he might be able; and he commanded Belisarius to enter Italy with all speed and to treat the Goths as enemies. 

So Constantianus came to Epidamnus and spent some time there gathering an army. But in the meantime the Goths, under the leadership of Gripas, came with another army into Dalmatia and took possession of Salones; and Constantianus, when all his preparations were as complete as possible, departed from Epidamnus with his whole force and cast anchor at Epidaurus which is on the right as one sails into the Ionian Gulf. 

Now it so happened that some men were there whom Gripas had sent out as spies. And when they took note of the ships and the army of Constantianus it seemed to them that both the sea and the whole land were full of soldiers, and returning to Gripas they declared that Constantianus was bringing against them an army of men numbering many tens of thousands. And he, being plunged into great fear, thought it inexpedient to meet their attack, and at the same time he was quite unwilling to be besieged by the emperor's army, since it so completely commanded the sea; but he was disturbed most of all by the fortifications of Salones (since the greater part of them had already fallen down), and by the exceedingly suspicious attitude on the part of the inhabitants of the place toward the Goths. 

And for this reason he departed thence with his whole army as quickly as possible and made camp in the plain which is between Salones and the city of Scardon. And Constantianus, sailing with all his ships from Epidaurus, put in at Lysina, which is an island in the gulf. Thence he sent forward some of his men, in order that they might make enquiry concerning the plans of Gripas and report them to him. Then, after learning from them the whole situation, he sailed straight for Salones with all speed. 

And when he had put in at a place close to the city, he disembarked his army on the mainland and himself remained quiet there; but he selected five hundred from the army, and setting over them as commander Siphilas, one of his own bodyguards, he commanded them to seize the narrow pass which, as he had been informed, was in the outskirts of the city. And this Siphilas did. And Constantianus and his whole land army entered Salones on the following day, and the fleet anchored close by. 

Then Constantianus proceeded to look after the fortifications of the city, building up in haste all such parts of them as had fallen down; and Gripas, with the Gothic army, on the seventh day after the Romans had taken possession of Salones, departed from there and betook themselves to Ravenna; and thus Constantianus gained possession of all Dalmatia and Liburnia, bringing over to his side all the Goths who were settled there. 

Such were the events in Dalmatia. And the winter drew to a close, and thus ended the first year of this war, the history of which Procopius has written.

6th Century Eastern Empire Cavalry

(History of the Wars)      (Gothic War)

Monday, December 18, 2017

The Decline of the Roman Army before Manzikert

Byzantine warrior - Davd Mele wearing his construction of an 11th C klivanion.

A Power Struggle in the Empire

This comes under the category "You can find anything on the Internet".

By accident I found a paper from Leiden University in the Netherlands dealing with the conflict between the Eastern Roman Emperor and his landed nobility. Mixed with that conflict was a weakening of the Byzantine economy, coinage, corruption, invasions and attacks on the independent Farmer-Soldier who made up the backbone of the Roman Army.

By the 11th century the Roman Empire was again at the height of its power following campaigns in the East that restored much territory lost to the Arabs in the seventh and eighth century.

Following the Arab conquests the Roman Empire was greatly reduced in size and less secure than before. The main economic unit had become the independent farmer who lived in small communities and paid their taxes based on the land they owned. The civil aristocracy of the Roman period had mostly disappeared, but a new elite was forming on the fringes of the empire. They held military functions in the provinces where they enjoyed great power thanks to the thematic organisation of the empire; their military function was combined with civil duties and authority.

During the ninth century this elite became more and more prominent, they increasingly found their positions within the bureaucracy to be more or less hereditary since the emperors relied on these military men.  To prevent these aristocrats from endangering the fiscal backbone of the empire (the independent farmer) by acquiring their land the state started legislating against these aristocrats. The struggle over land ownership was one not fought out over a decade but rather over centuries, during a period of great change for the Byzantine Empire.

The land legislation uses the term dynatoi (δυνατοί) which literally means “powerful”. The emperors, at least in theory, tried to defend others groups from these dynatoi.

Land in the possession of farmers was needed by the state in order to receive the gold, through taxes, needed to effectively run the state. If this system was endangered it could mean disaster for the state when it could no longer meet its obligations.

This is a scholarly work and very detailed. But it gives us a feel for a "swirl of anarchy" that was developing within the Empire before the disaster of Manzikert in 1071.

Below is a portion of the much longer paper.

Prof. Dr. P. Stephenson and Prof. Dr. P.C.M. Hoppenbrouwers 
History, University of Leiden

The conquests made by the Byzantines during the 10th century, and especially by the last three emperors, would be the last conquests made for a long time. Haldon estimates the total number of soldiers during the 10th century to have been around 110,000. This number would be brought down during the 11th century as emperors after Basil II preferred to use diplomacy, tribute and intimidation rather than military strength.

During the reign of Basil II buffer states were created to stabilize the borders, which would be part of the policy followed by his successors. The army slowly moved away from the thematic organisation and became a local undertaking. This meant that larger threats could only be countered from Constantinople. There was a realisation among the 11th century emperors that an army the size of Basil II’s army was too expensive to maintain on a permanent basis and preference was given to mercenaries who could be maintained for shorter periods of time without the additional training cost.

We get a glimpse of the state of the army just before the battle of Manzikert (1071) which was a decisive defeat for the Byzantines. John Zonaras comments that: “It was not easy to give strength to the army, which had been neglected for such a long time”.

A few lines down he also writes that the Sultan was fearful of the Roman army, especially since it was led by the emperor in person, which gives the impression that the Roman army was not in such a deplorable state as has been assumed.

Manuel I Comnenus gold hyperpyron.
In 1034 we saw to start of the debasement of the Byzantine gold hyperpyron coins. The debasement was gradual at first, but then accelerated rapidly. about 21 carats (87.5% pure) during the reign of Constantine IX (1042–1055), 18 carats (75%) under Constantine X (1059–1067), 16 carats (66.7%) under Romanus IV (1068–1071), 14 carats (58%) under Michael VII (1071–1078), 8 carats (33%) under Nicephorus III (1078–1081) and 0 to 8 carats during the first eleven years of the reign of Alexius I (1081–1118).  More . . . .

A major economic theme during the eleventh century that affected the state and the aristocracy was certainly the debasement of the (golden) coinage and changes in the tax system. Both had great effects for the state economy however more importantly they were intertwined and had numerous side effects. The simple need for more money in order to pay expenses, both civil and military, was a problem seen before and debasement had not been the solution or preferred method then.

The solution often preferred and used by emperors was to simply cut expenses of either the military or civil apparatus. This was done by Heraklios, Isaac I, Nikephoros III, Alexios I and Andronikos II. A more drastic alternative lay in confiscation, either from the populace or the Church, the latter being used by Isaac I and Michael VII in the period here discussed.

Michael IV was the first emperor to debase his coinage (a 4% loss in gold content) and while he had the previously mentioned alternatives available he did not use them, but rather resorted to debasement. He might have been familiar with the practice through his profession as money-changer. The rapid debasement was stopped when Alexios I came to power in 1081 and had military successes on all fronts, reformed the coinage, restructured the financial administration and reformed the tax system. This chapter will describe not only the debasement but also the combination with newer forms of taxation and how that effected the relation between the aristocracy and the state.

With the end of Basil II’s reign there is also an end to land legislation as far as we know. It seems unlikely that stricter laws were written and enacted when looking at the policy of many of the eleventh century emperors. On the other hand it seems even more unlikely that legislation was not used when it suited the emperor or his administration. . . .  Even if the state no longer had the power it had during the reign of Basil II the land legislation was still a valuable piece of propaganda. However it should also be noted that the insertion of new text also included texts that actually helped magnates to gain more land.

Other traces of the land legislation can be found in the histories, like Psellos or Skylitzes, however most are favorable to the dynatoi rather than opposing them. Romanos III Argyros (1028 – 1034) abolished a law that was written by Basil II concerning something called allelengyon by Skylitzes. Its function was to return great landowners to existing fiscal units so that they could not escape the shared fiscal obligation active in village communities, rather than function autonomously and creating their own fiscal unit. That this measure was unpopular with the great landowners and perhaps more importantly, the church, is evident. Romanos lent them a sympathetic ear and abolished this law.

As stated before Michael IV was the first emperor who debased his coinage, a process that continued until the Komnenian reform of 1091. During the reign of Constantine IX we see the first significant debasement, with coins of 18 carats from the latter part of his rule. Modern day historians have two main explanations. The first being that of a fiscal disaster (mostly linked to military defeat) and subsequent emergency debasements to increase the state’s ability to spend. The second is that of “expansionism” which states that debasement was an effect of the expanding economy, more coins were needed for use in the market.

Costas Kaplanis has recently argued that the debasement first started under Constantine IX and was a response to the Pecheneg invasion in 1046/1047. The general debasement up to that point was hardly noticeable and was conducted over a period of nearly a hundred years. The severity of the Pecheneg invasion has up to this point been underestimated; it left the empire bankrupt and vulnerable to invasions in the East (which indeed then happened under the Seljuk Turks). Kaplanis’ reasoning is a realistic explanation, one backed up by Hendy, Angold and to some extent Harvey. One need not assume an advanced economical knowledge in the Byzantine Empire

The expansionist explanation was first put forward by Morrison and is supported by Oikonomides and Lemerle. It describes the debasement as a method of increasing coins in circulation (with a lower gold content so more coins can be struck) in order to meet economic growth. One of the key arguments is that the debasement was gradual and was not really noticed by contemporaries. It is not until the 1070’s that we see a rapid debasement that was certainly linked to crisis (following the loss of Bari in 1071, the defeat of Manzikert and the internal chaos that followed). Though the expansionist view is rather sophisticated and for it to work a lot has to be assumed concerning demographics, increase in trade and economic expansion can be seen in a broader context, as Oikonomides has done.  He shows that the need for gold (mostly in coins) was not something that first started after 1046/1047, when we assume the first debasement was made in reaction to the Pecheneg wars. The Peira shows an increase in interest rates, certainly before 1045, from 6% to 8,33% which is an indication that money was in short supply.

The Senate from HBO's Rome
Selling The Post of Senator

the sixth century the Senate had ceased to meet in its own building and instead assembled in the Palace of Constantinople under the watchful eye of the Emperor. The power of the Senate progressively decreased over the centuries. By this point becoming a Senator was little more than social status and had become just another fundraising tool for the Empire's annual budget.  (Senate)

Though not necessarily linked with the increased interest rate, the return of investment on honorary titles decreased, due to a price increase. For example the title of protospatharios now cost 20 litrai of gold instead of 18.

Constantine IX Monomachos and Constantine X Doukas opened the doors of the senate for the “noveaux riches”. Psellos notes during the reign of Constantine IX:

  • The doors of the Senate were thrown open to nearly all the rascally vagabonds of the market, and the honor was bestowed not on two or three, nor on a mere handful, but the whole gang was elevated to the highest offices of state by a single decree, immediately after he became emperor.” 

And on the reign of Constantine X:

  • “The government officials, their deputies, the minor dignitaries, even the manual workers, all received something. In the case of the last-named, he actually raised their social status. Until his time there had been a sharp distinction between the class of ordinary citizens and the Senate, but Constantine did away with it. Henceforth no discrimination was made between worker and Senator, and they were merged in one body.” 

This new influx of senators generated revenue for the treasury as they indubitably had to buy their offices and high honors. It also shows that honors at court were still very much in demand and popular even if it was unlikely you would regain your investment.

New capital was found as these new senators had been outside of the rogai system, but the social fabric of court was also affected. The opening of the senate has mostly been explained in a fiscal sense, which was undoubtedly the main reason behind it, it can however also be seen in a political sense. By opening the senate to groups that had previously been banned from participation in the political elite both emperors created a new aristocracy of noveaux riches. But perhaps more importantly these new senators were representatives of the increasingly richer people of Constantinople rather than cultured courtiers or provincial aristocracy.

Michael V made the mistake of going against the wishes of the populace of Constantinople by banning Zoë and Theodora, the last living heirs of the Macedonian line and the nieces of Basil II. He even tried to ally himself with the people; his proclamation was read out loud at the forum of Constantine the Great to the citizens. He promised them: ‘as for you, my people, if you maintain your favorable disposition towards me, you will acquire great honours and benefits, living an untroubled life. ‘.

The citizens were not impressed by these words and took offence that someone like Michael V (of relatively lowly birth) would oust the nieces of Basil II and last representatives of the Macedonian dynasty. They replied: ‘we don’t want a cross-trampling caulker for emperor, but the original and hereditary ruler: our mother Zoe!’ Constantine IX and X both gave out honors to the representatives of the people, mostly through the guilds, when they established their rule, no doubt in part to gain their support.

We can also find other clues that gold had become scarce early on in the eleventh century and that the state had to devise ways of acquiring it. John the Orphanotrophos was a shrewd politician and devised several ways to increase taxation and state income. Skylitzes mentions John’s tax-regime on multiple occasions:

  • “He added this over and above the public taxes: that every village should pay an aerikon tax, each one according to its ability: one village four pieces of gold, another six and so on up to twenty, plus other shameful tolls to generate income which it would be a disgrace to mention. John put the official’s appointment up for sale and gave everybody his head in wrongdoing, filling the world with ten thousand woes. Judges were levying taxes on the people with impunity and nobody cared a farthing for what was going on. . . . they rebelled and threw off the Roman yoke as on account of the Orphanotrophos’ greed and insatiate desire for riches.”

The first mentioned aerikon tax was a tax that had existed during Justinian’s reign in the sixth century and was still in existence in the eleventh. It is unclear what it was a tax on, most likely cattle or other animals that were needed for the army (since it is mentioned in Leo VI’s Taktika as a tax paid by soldiers). This tax was not invented but increased by John the Orphanotrophos and is a prime example of the increase in secondary taxes.

Emperor Constantine IX
With one hand the Emperor organized an allied army to face a Turkish invasion. But with the other hand he deliberately disbanded the eastern frontier border forces in order to raise quick cash. 

One of his most notorious measures was to start taxing Bulgaria in gold rather than in kind as had been the case since Basil II conquered Bulgaria (which the last quote alludes to). The belief that this caused the rebellion of Deljan has recently been refuted, however unpopular such changes may have been. Other increases of secondary taxes were employed, especially through the possibility to buy out military service and other special corvées. These special corvées were named angareiai and could be anything from road, bridge or fortification building right up to the cutting of wood and even ship building.

Constantine IX Monomachos even disbanded the 5,000 soldiers of the Iberian theme, which was the main defensive line against invasions from the East like Seljuk Turks. He made it mandatory for them to pay ‘heavy taxes’ instead of serving the army.

(EDITOR - This portion of the paper is so important. The Emperor was so consumed with the need for gold coin that he foolishly and deliberately weakened the Roman Army in Anatolia facing invasion by the Turks.)

Perhaps the most well known measure John the Orphanotrophos took is the increase in taxfarming (the second from the above quotes mentions tax farming). This was not in itself a new phenomenon; tax-farming was done until the seventh century. The Isaurian emperors put a hold to this practice (which is in line with their fiscal policy and other centralizing initiatives). It slowly returned during the 10th century, but it was still an exception, by the 11th century the practice had become quite common. John the Orphanotrophos began selling offices on a larger scale during the reign of Michael IV when he was basically in command of the empire.

Though the accounts are biased against John the Orphanotrophos it is still clear that his regime added to the growing tax pressure in the provinces, were there was little to no control over the taxfarmers. In this case he sold the office of provincial judge but gave them the right to levy taxes, which was meant that it was also very hard to do anything in legal terms. One way or the other this increased  the tax in the provinces as these judges strove to make a profit (legally or illegally). Being part of the financial administration of the empire could be lucrative as Kekaumenos tells us it was believed that by the eleventh century all major mansions in Constantinople were build by those who had ran the financial administration or worked for that department. He also adds a warning, one John Maios who was a strategos ended up with a deficit of 60 pounds of gold when he was responsible for the tax collection in the tax district of Arabissos.

Although this deficit was quiet large it was a rather limited tax-district meaning large profits could be made when administering larger tax-districts. This increase in tax-farming and the money that could be made by such an enterprise was slowly replacing the rogai system. We can see the first signs of this general decline during the reign of Michael IV when John the Orphanotrophos was looking for ways to increase income. Other signs that the rogai system was in decline come from the rule of Isaak Komnenos who cut “gifts” for the offikion.  Nikephoros III Botaneiates stopped paying his administration altogether because he had been too lavish in his gifts and honors (which he gave out for free). Alexios I Komnenos later abolished the rogai system altogether

This general increase in taxes can be seen in a very clear example in 1082, when the monastery of Vatopedi was obliged to pay 19 nomismata in land tax. The secondary tax which was called kaniskion was also collected. It was usually paid in kind directly to fiscal officials (since it was meant as upkeep for the tax officials) since it seems to refer to a round loaf of bread, a half measure of wine, a modios of barley and a chicken. This kaniskion was set a total of 20 nomismata meaning this supplementary tax could also be bought out.

The secondary tax that had to be paid was now greater than the primary, land tax. One of the effects of this increase, mainly in secondary tax that taxes became increasingly hard to predict especially in combination with tax farming. Hoarding was still a popular practice in the eleventh century and we have two examples of hoards created by high officials. During the reign of Michael IV the archbishop of Thessalonica had hoarded 3,300 lb of gold (237,600 nomismata) which was to be distributed to the poor and the clergy of Thessalonica. In 1043 we learn that on his death the Patriarch Alexios Stoudites had left 2,500 lb of gold (180,000 nomismata) in his monastery (which the Emperor confiscated). For large landowners with hoarded gold the unpredictability of the tax was unpleasant but at least bearable.

Byzantine Skoutatoi Heavy Infantry X Century
Most of the foot-soldiers of the empire were the armored infantry SkutatoiTheir training was very much like that of the legionaries, with the soldiers taught close quarters, melee techniques with their swords and archery was extensively practiced.
Tax policies played an important role in weakening the military theme system which fielded local armies of Farmer-Soldiers to meet invaders. As these loyal citizen independent troops declined the Emperor was forced to spend more and more of his limited tax income on often unreliable foreign mercenary units. 

For the small landowning peasants, however, the increasing tax pressure and its unpredictability became a real problem. This more or less forced them to seek protection of greater landowners who could offer reductions in secondary taxes through privileges such as exkousseia. This meant that it became increasingly attractive to work as a paroikos for an ecclesiastical institution or lay magnate that had to power to acquire exkoussiea or other privilege rights.

An example of a village community searching the protection of a lord, is Michael Psellos. In 1060 the villagers of Atzikome asked Michael Psellos to become their lord so he could protect them and intersect on their behalf with the krites/praitor of the Opsikion theme whom the villagers did not know. Because Psellos was influential at court and knew the system he was much more likely to acquire tax relieve for the villagers than they could acquire by themselves.

This is not to say that the independent farmers disappeared during the eleventh century. The coastal plains and themes close to Constantinople and the conquered themes of the tenth century were still either in imperial hands or at least not in the hands of magnates. However we do see a line that would became clearer during the Komnenian period, paroikoi working the land of great institutions that had developed during the tenth and eleventh century.

Toward the end of the eleventh century (after 1071) we can see the financial crisis deepen. The purity started to deteriorate quickly, 1071 was a year of crisis in the empire as a large army was defeated by the Turks at Manzikert and the emperor captured in battle. What followed was a period of rebellions and general hardship. Gold content in golden coinage fell to 58.1% under Michael VII Doukas (r. 1071 – 1078), 35.8% under Nikephoros III Botaneiates (r. 1078 – 1081) and finally to 10.6% under Alexios I pre-reform. Though many historians have blamed this sharp reduction of gold content in the coinage to the battle of Manzikert this is probably not the case.

Byzantium had been defeated in many battles before Manzikert without this drastic action. The difference lies in the ensuing internal unrest, Michael VII was not a strong ruler who was led by his bureaucrats (like Psellos). The rebellions during his reign aimed at re-establishing some sense of order which was finally achieved by Alexios I Komnenos. By that time the Byzantine Empire had changed radically yet again. Power was divided by those who were of the Komnenos clan and their close allies,while the church gained more power yet again and held vast tracts of land that were worked by paroikoi.

Anatolia was never really recovered which meant that the Eastern magnates disappeared, they either came to Constantinople to form the elite around the Komnenian dynasty or they settled in the Balkans were they never acquired quite as much land as they had had in Anatolia.

Eastern border of Byzantium in 1025
The Turks invaded the Byzantine military theme of Iberia during the period of this article. While the Turkish threat grew in the east we see the Emperor cutting border forces in order to raise quick cash for the Treasury.
Read More:
First Contact - Seljuqs vs Byzantines at the Battle of Kapetron

(openaccess.leidenuniv.nl)      (Byzantine battle tactics)

Tuesday, November 14, 2017

Slavs Invade The Roman Balkans

The Sclaveni (in Latin) were early Slavic tribes that raided, invaded the Eastern Roman Empire and settled the Balkans in the Early Middle Ages along with other South Slav tribes. The Sclaveni were mentioned by early Byzantine chroniclers as barbarians having appeared at the Byzantine borders along with the Antes, another Slavic group.

The Emperor Justinian appears to have changed his policy against Slavic barbarians from attack to defense, exemplified by his grand program of re-fortification of garrisons along the Danube. Procopius notes that in 539/40, the Sklavenes and Antes 'became hostile to one another and engaged in battle. probably encouraged by the Romans' traditional tactic of 'divide and conquer'. At the same time, the Romans recruited mounted mercenaries from both groups to aid their war against the Ostrogoths. 

Both Procopius and Jordanes report numerous raids by "Huns", Slavs, Bulgars and Antes in the years 539–40 AD; reporting that some 32 forts and 120,000 Roman prisoners were captured. Sometime between 533 and 545, the Antes invaded the Diocese of Thrace, enslaving many Romans and taking them north of the Danube to the Antean homelands. Indeed, there was numerous raids during this turbulent decade by numerous barbarians, including the Antes.

I have come to call this the de-Latinization of the Roman Empire.

Raid after raid of barbarians crossed the Danube. Latin and Greek speaking communities loyal to the Empire were "ethnically cleansed". . . . exterminated. . . . and replaced by foreign tribes that hated the Empire. Hostile Slavic tribes were permanently settling lands closer and closer to Constantinople.

Not only were Roman populations decimated, but we see a move to a ruralization of the Empire. Small, medium and even large cities were wiped out. 

These genocidal invasions had the impact of reducing the recruiting grounds for the Roman military machine as well as cutting off tax income to the Empire.

The account below by the historian Procopius gives us a good feel for the Slavic terrorism of the invading tribes.

By Procopius of Caesarea
500 - 554 AD

History of the Wars, Book VII

At about this time an army of Sclaveni amounting to not more than three thousand crossed the Ister River without encountering any opposition, advanced immediately to the Hebrus River (Maritsa), which they crossed with no difficulty, and then split into two parts.

Now the one section of them contained eighteen hundred men, while the other comprised the remainder. And although the two sections were thus separated from each other, the commanders of the Roman army, upon engaging with them, both in lllyricum and in Thrace, were defeated unexpectedly, and some of them were killed on the field of battle, while others Siived themselves by a disorderly flight.

Now after all the generals had fared thus at the hands of the two barbarian armies, though they were far inferior to the Roman forces in number, one section of the enemy engaged with Asbadus. This man was a guard of the Emperor Justinian, since he served among the candidati as they are called, and he was also commander of the cavalry cohorts which from ancient times have been stationed at TzuruUum, the fortress in Thrace, a numerous body of the best troops.

These too the Sclaveni routed with no trouble, and they slew the most of them in a most disgraceful Hight ; they also captured Asbadus and for the moment made him a prisoner, but afterwards they burned him by casting him into a fire, having first flayed strips from the man's back.

The Limitanei troops would have faced the Slavic invaders in this article.

The Limitanei were the static frontier guard troops that replaced the legions in the fourth century CE. The Romans were responding to the fact their long Danube and Rhine frontiers were subject to constant barbarian raids and that their cities were no longer secure.

In a short sighted cost saving move the Eastern Empire the Limitanei saw their pay cancelled by Justinian. 
After this, the eastern Limitanei were no longer professional soldiers, but continued to exist as militia through the Persian Wars and the Arab Conquest.

Having accomplished these things, they turned to plunder all the towns, both of Thrace and of Illyricum, in comparative security ; and both armies captured many fortresses by siege, though they neither had any previous experience in attacking city walls, nor had they dared to come down to the open plain, since these barbarians had never, in fact, even attempted to overrun the land of the Romans.

Indeed it appears that they have never in all time crossed the Ister River with an army before the occasion which I have mentioned above. Then those who had defeated Asbadus plundered everything in order as far as the sea and captured by storm a city on the coast named Topirus,- though it had a garrison of soldiers ; this is the first of the coast towns of Thrace and is twelve days' journey distant from Byzantium.

And they captured it in the following manner. The most of them concealed themselves in the rough ground which lay before the fortifications, while some few went near the gate which is toward the east and began to harass the Romans at the battlements.

Then the soldiers keeping guard there, supposing that they were no more than those who were seen, immediately seized their arms and one and all sallied forth against them. Whereupon the barbarians began to withdraw to the rear, making it appear to their assailants that they were moving off in retreat because they were thoroughly frightened by them ; and the Romans, being drawn into the pursuit, found themselves at a considerable distance from the fortifications.

Then the men in ambush rose from their hiding-places and, placing themselves behind the pursuers, made it no longer possible for them to enter the city. Furthermore, those who had seemed to be in flight turned about, and thus the Romans now came to be exposed to attack on two sides. Then the barbarians, after destroying these to the last man, assaulted the fortifications.

But the inhabitants of the city, deprived as they were of the support of the soldiers, found themselves in a very difficult situation, yet even so they warded off the assailants as well as the circumstances permitted. And at first they resisted successfully by heating oil and pitch till it was very hot and pouring it down on those who were attacking the wall, and the whole population joined in hurling stones upon them and thus came not very far from repelling the danger.

But finally the barbarians overwhelmed them by the multitude of their missiles and forced them to abandon the battlements, whereupon they placed ladders against the fortifications and so captured the city by storm.

Then they slew all the men immediately, to the number of fifteen thousand, took all the valuables as plunder, and reduced the children and women to slavery. Before this, however, they had spared no age. but both these and the other group, since the time when they fell upon the land of the Romans, had been killing all who fell in their way, young and old alike, so that the whole land inhabited by the Illyrians and Thracians came to be everywhere filled with unburied corpses.

Now they killed their victims, not with sword nor spear, nor in any other accustomed manner, but by planting very firmly in the earth stakes which they had made exceedingly sharp, and seating the poor wretches upon these with great violence, driving the point of the stake between the buttocks and forcing it up into the intestines ; thus did they see fit to destroy them.

These barbarians also had a way of planting four thick stakes very deep in the ground, and after binding the feet and hands of the captives to these they would then assiduously beat them over the head with clubs, killing them like dogs or snakes or any other animal. Others again they would imprison in their huts together with their cattle and sheep—those, of course, which they were utterly unable to take with them to their native haunts —and then they would set fire to the huts without mercy.

Thus did the Sclaveni consistently destroy those who fell in their way. But from this time onward both these and those of the other group, being as it were drunk with the great quantity of blood they had shed, saw fit to make prisoners of some who fell into their hands, and consequently they were taking with them countless thousands of prisoners when they all departed on the homeward way.

Slavic warrior fighting with Byzantine infantryman.

The Empire and the Ostrogoth Kingdom in 535AD
The Emperor Justinian bled the Empire white in efforts to re-conquer North Africa, Spain and Italy.
Starting in 535AD Roman armies invaded the Ostrogothic Kingdom of Italy. For ten years the Empire's troops were being pulled out of Anatolia and the Balkans and sent to Italy. The defensive strength of Roman Limes along the Danube got thinner and weaker by the year. Then came the barbarian Slavs crossing the Danube and roaming the Empire almost at will.

(History of the Wars, Book VII)      (Sclaveni)

Sunday, October 22, 2017

Taxes and the Fall of the Roman Empire

Eastern Empire Coins

"In this world nothing can be said to be certain, except death and taxes."
Ben Franklin

Simply it took a horde of locust-like tax collectors to fund the Roman military machine, the massive Imperial bureaucracy and pay for the opulent lifestyle of the Emperor and his large family.

So some "barbarian horde" crosses over the Rhine, the Danube or the deserts of Arabia to set up shop. Sure the Emperor's army is gone, but once the initial looting and raping is over the locals notice that the Emperor's tax collectors are also gone.

Suddenly it looks like there is an upside to no longer being a citizen of Rome.

The Muslim Conquest and Tax Reduction

From: The Grand Strategy of the Byzantine Empire by EDWARD N. LUTTWAK

What the Muslim Arab conquerors themselves humbly saw as a divine victory, Nasr Allah, can be recognized in retrospect as something even better, a political victory over both empires that won not merely vast territories but also the consent of many of their inhabitants.

The impetuous Arab advances could have been nothing more than ephemeral raids, destined to be nullified by nativist resistance, had the invaders not offered two very great and immediate advantages with their arrival.

One was a drastic reduction in taxes that had become ruinously onerous. The other was truly paradoxical: by imposing discriminatory rules on all non-Muslims, the Muslim Arabs ended the arbitrary religious persecutions that had recently oppressed a majority of the inhabitants of Syria and Egypt.

Muslim taxes could be low because the cost of Muslim rule was very low at first. The conquerors had neither a vast imperial overhead of bureaucrats and courtiers in the austerity of Mecca and Medina, nor were they trying to rapidly rebuild wrecked imperial armies as both the Byzantines and Sasanians were doing in those years. The taxes imposed by the Muslim authorities were both harshly discriminatory, because only non-Muslims had to pay most of them, and blessedly lower than the relatively well-documented Byzantine taxes, and known Sasanian taxes.

While nobody has ever been able to prove—as many have tried to prove—that the Roman empire “fell” because of excessive taxation, it was and remained until the mid-seventh century a top-down system, whereby the total amount of imperial expenditure for the coming year was determined first, the revenue needed was then calculated province by province, and that total was in turn allocated within each province among its registered taxpayers, mostly payers of the land tax, according to periodic assessments of the agricultural yield of each tract (jugatio) and the available manpower (capitatio).

Roman tax collector

It was a uniquely sophisticated and very effective system of collection, which was indeed the central advantage of the Roman and Byzantine empire over all other contemporary powers. It did mean, however, that the taxpayer had to pay a precalculated amount regardless of good or bad harvests, droughts or floods, destructive foreign raids, or even outright invasions.

An especially dramatic disaster that attracted much attention might persuade the imperial authorities to reduce the revenue obligation of the affected province, but no allowance could be made for ordinary harvest or market fluctuations, because there was no way of offsetting lost revenues: the concept of the public debt and its sale in the form of interest-bearing bonds had not yet been invented.

The purchase of remunerated government positions, which swapped a single capital payment for a revenue stream, was the functional equivalent of selling bonds to the public, but it could not be widely practiced. Hence current expenditures had to be paid for by current taxes in a strict pay-as-you-go sequence—a tolerable burden in good years but harsh in bad years, and sometimes reason enough to flee homes and lands ahead of the tax collectors.

Fundamentally, Byzantine tax collection was simply too effective. Emperor Anastasios (491–518) had his share of foreign incursions to confront with costly military operations, and four years of more costly full-scale war with ever-aggressive Sasanian Persia from 506, and he also spent vast sums on public works, among other things substantially rebuilding and fortifying the Long Wall and building the fortress city of Dara (near Oèuz, Turkey), “fortifying it with a strong circuit wall and bestowing on it . . . not only churches and other sacred buildings but colonnades, and public baths.”

Anastasios spent much, yet he was able to abolish the collatio lustralis, a top-down capital levy on every form of wealth: buildings, animals, tools, and the slave-value of artisans, merchants, and professionals, excluding teachers but including prostitutes and catamites. It was originally collected every five years (lustrum), which became every four years in the normal way of taxes by the time of Anastasios, but either way it was very hard for artisans and small merchants to come up with the gold payment all at once (in spite of its Greek name chrysargyron, “gold-silver,” only gold was accepted by the tax collectors).

The text known as A Historical Narrative of the Period of Distress Which Occurred in Edessa, Amid and All Mesopotamia, also known as The Chronicle of Joshua the Stylite, describes the ecstatic reaction to the levy’s abolition in the town of Edessa, whose assessment was 140 pounds of gold, 10,080 solidi, evidently a crushing burden:

  • "The edict of the emperor Anastasios arrived this year, remitting the gold which tradesmen paid every four years and freeing them from the tax. This edict did not go only to Edessa but to all the cities of the Roman domain . . . and the whole city rejoiced, and they all dressed up in white, from the greatest to the least, and carrying lighted candles and burning censers, to the accompaniment of psalms and hymns, they went out... thanking God and praising the emperor . . . they extended the feast of joy and pleasure for a whole week. . . . All the artisans sat around and had a good time, [bathing and] relaxing in the courtyard of the City church and all the city’s colonnades."

Having both spent much and given up much revenue—but he also increased the efficiency and probity of tax collection—Anastasios left 3,200 centenaria of gold, that is, 320,000 Roman pounds, in the treasury at his death.11 As of this writing, the price of gold is roughly US$903 per ounce or 31.1 grams, so the surplus left by Anastasios came to roughly US$3,039,496,257—not much these days, but gold was much more valuable then, in terms of bread, for example.

At the time of the Arab invasions there was no budget surplus to hoard. Thirty years of war had increased expenditures while greatly re-ducing revenues, leaving the treasury empty or near enough. Hidden reserves—such as ecclesiastical ornaments in gold and silver that could be confiscated in a crisis—were also exhausted. Already in 622 emperor Herakleios “took the candelabra and other vessels of the holy ministry of the Great Church [the Hagia Sophia], which he minted into a great quantity of gold and silver coin.”

The result was that tax revenues had to be collected from Syria and Egypt as soon as they were reconquered after years of Sasanian occupation—and these were lands that had been taxed by the Byzantines, invaded and taxed by the Sasanians, fought over repeatedly and often looted, before being regained to be taxed again. The empire was rebuilding its strength, and its subjects had to raise the necessary gold, or else face expropriation or worse.

It was too much. They welcomed the Muslim Arabs instead, discriminatory poll tax and all.

American Empire VS Roman Empire : monetary history repeats itself

This is a short montage of a one hour and twenty minutes lecture
by Joseph Peden at the The Ludwig von Mises Institute.

Inflation and the Fall of the Roman Empire - full lecture by Professor Joseph Peden

This is the long version. Have it play while you are surfing the net. Tons of info on taxation and the funding of the Roman military machine.

Tax Collectors in 16th Century Russia
One way or another the State will get the money it wants.

Taxation, trade and urbanism in the Byzantine Empire

There was a long tradition of urban life in the Hellenistic and Roman East, but it is clear that during the Byzantine period, the nature of urbanism changed from the city-state model of Classical Antiquity.

One of the problems for East Roman provincial cities in Later Antiquity was that power became centralised around the imperial court and family and therefore it was incredibly important for powerful figures to be close to the power and patronage of the court.

Therefore there developed a clear distinction between the elites of the provinces and the elite around the presence of the emperor.

Because in the early mediaeval period, following the loss of the Levant to the Arabs, there was a decline in the population of the provincial cities, this accelerated the drift of the rich and powerful to the centre. The traditional aristocracy gradually lost power and needed patronage and imperial titles, plus the salaries that came with them, to retain their positions in the ruling elite. The administrative changes of the early emperors, culminating with the reforms of Justinian I, made the shift away from the traditional ruling elite complete and henceforth the elites became more and more dependent on imperial patronage and salaried positions.

This led to Constantinople becoming and even more dominant factor in the life of the empire, increasing in importance and population throughout Late Antiquity and the Early Middle Ages.

However, at no time did any more than around 10% of the total population of the empire live in cities, and some formerly large cities dwindled fairly dramatically in the 7th and 8th centuries, with them becoming basically walled enclosures for a group of villages, with a central administrative district, often clustered around a church or an administrative building. These were known as kastra, and these kastrons were to become a permanent feature of urban locations from the 8th century onwards.

From the end of the 9th century onwards we see a revival of urbanism in the empire, with rebuilding and even new foundations in previously non-urban settings.

As I mentioned before, the cities had separate localised elites that were linked to the elites of the capital, but with their own networks, often based around the governors, tax officials and bishops. They were not as independent as cities in the West, but the empire was a far more regulated and closely administered political entity than any western nation during the mediaeval period.

It was really only after 1261, under the Palaiologoi that you see cities with truly independent and separate status to Constantinople; Trebozond, Mistra, Adrianople etc, but many of these were not directly under imperial rule anyway by that time.
“The question of the continuity of civic institutions and the nature of the polis in the late antique and early Byzantine world have become a vexed question, for a variety of reasons. Students of this subject continue to contend with scholars of earlier periods who adhere to a much-outdated vision of late antiquity as a decadent decline into impoverished fragmentation. The cities of late-antique Greece displayed a marked degree of continuity. Scenarios of barbarian destruction, civic decay, and manorialization simply do not fit. In fact, the city as an institution appears to have prospered in Greece during this period. It was not until the end of the 6th century (and maybe not even then) that the dissolution of the city became a problem in Greece. If the early sixth century Syndekmos of Hierokles is taken at face value, late-antique Greece was highly urbanized and contained approximately eighty cities. This extreme prosperity is born out by recent archaeological surveys in the Aegean. For late-antique Greece, a paradigm of prosperity and transformation is more accurate and useful than a paradigm of decline and fall.”
Richard M. Rothaus, Corinth: The First City of Greece. Brill, 2000. ISBN 9004109226
The Walls of Byzantine Thessaloniki
Around 10% of the total population of the empire live in cities, and some formerly large cities dwindled fairly dramatically in the 7th and 8th centuries, with them becoming basically walled enclosures for a group of villages, with a central administrative district, often clustered around a church or an administrative building. 

That is an interesting summary of urban life in the East in Late Antiquity, and one that needs to be seen in contrast to the position in Italy.

Now, a brief overview of taxation in the Byzantine empire.

Regardless of the relative decline or regrowth of urban life in the empire, the main generator of wealth was agriculture.
At least 80% of all tax revenues were raised from taxation of the village units or coloni who represented the agricultural base of the empire.
The village was the demographic unit of taxation, which were broadly speaking land taxes, towns and cities were not treated any different, they were assessed for taxation on the same basis. Indeed most cities and towns were also involved in agricultural production to some degree, with a proportion of urban populations cultivating land either inside the urban boundaries or outside but close to the cities and towns.
The other main source of tax revenue was the hearth tax, basically a poll tax and there were various other taxes, such as inheritance taxes and taxes in trade and what we might call customs duties.
Tax collection was incredibly efficient and imperial tax collectors were able to generate huge amounts of money for the imperial treasuries. Agricultural land was assessed on the basis of productivity, and there were different rates of taxation for higher and lower producing areas.
Obviously, things were not static, the imperial bureaucracy was remarkably resilient and flexible and over the centuries there were different ways that taxes were assessed and collected.
With the administrative changes to the structure of the empire, with the creation of the thematic system, we see a devolution of some power and of tax collection to the theme governors.
Gold solidus of Romanos I with his eldest son, Christopher Lekapenos
Romanos I Lekapenoswas an Armenian who became a Byzantine
naval commander and reigned as 
Byzantine Emperor from 920 until
his deposition on December 16, 944.

However, it was not really until the 11th century that we see a change in the provincial balance of power and a growth and expansion of large provincial landowning families. Under the Macedonian dynasty, land grants were made increasingly, under the pronoia system, whereby, instead of paying salaries to high-ranking aristocrats and officials, the right to tax farm was granted.
The pronoia system was expanded in the 12th century by the Komnenoi and following the period of the Latin Empire, the pronoia grants became increasingly hereditary.
Land grants were also made to the Church and from the 12th century onwards there was a transfer of land from the emperor to the great families and the Church. This led to a reduction in the amount of money available to the Exchequer and resulted in a debasement of the currency and dramatic price inflation.
Trade in the empire was generally mainly an internal affair, between towns and provinces or inwards to Constantinople. The elites derived their power and income from their estates and from their imperial salaries, they did not engage in trade.
There were some imperial monopolies, silk production, for example, but trade and manufacturing seems to have not generated enough wealth to allow speculative trade ventures outside the empire, even where this was allowed by law.
Trade was heavily regulated and tradespeople, in Constantinople at least, were organised into guilds and the guilds were subject to regulation by the City prefect.
As I said earlier, trade was internal and much trade flowed into the centre.
Clearly in the themes, there was small scale local trade, but because of the extreme (for the mediaeval period) centralisation of the state, it was trade with the centre that mattered most. Trade was taxed at a rate of 10% of the value of transactions.
It was this particularly undeveloped aspect of the Byzantine economy that allowed the Italian city-states to take such a large role in the trading life of the empire.
Exports from the empire were actively discouraged, essential goods being prohibited from being exported and over time, the concessions made to the Genoese, Venetians and others effectively removed the wealth generation from Byzantine hands virtually completely.
Read the full article

Grand Strategy of the Byzantine Empire

Dead?  -  You Must Still Pay Taxes.
"When pestilence swept through the whole known world and notably the Roman Empire, wiping out most of the farming community and of necessity leaving a trail of desolation in its wake, Justinian showed no mercy towards the ruined freeholders. Even then, he did not refrain from demanding the annual tax, not only the amount at which he assessed each individual, but also the amount for which his deceased neighbors were liable."
Secret History