Reforms Kavad's reign is noteworthy for his reforms, which he had been able to make with the nobility and clergy weakened by the Mazdakites. They would not be completed under his reign but were continued by his son, Khosrow I. The serious blows the Sasanians had suffered at the hands of the Hephthalites in the last quarter of the 5th century was a key reason behind the reforms the two made. Tax reform was implemented, a poll tax was created, and a review of taxable land was undertaken to ensure that taxation was fair. The empire was divided into four frontier regions (
kust in Middle Persian), with a
spāhbed (military commander) in charge of each district; a chancery was also added to keep the soldiers equipped. Before Kavad and Khosrow's reforms, the Iranians' general (
Eran-spahbed) managed the empire's army. Many of these military commanders were notably from the
wuzurgan class of
Parthia, indicating the continuation of their authority despite the efforts by Kavad and Khosrow. A new priestly office was also created known as the "advocate and judge of the poor" (
driyōšān jādag-gōw ud dādwar), which assisted the clergy to help the poor and underprivileged, which they had possibly ignored previously. As a result of the reforms, the power of the
dehqans, a class of small land-owning magnates, increased substantially. The
dehqans may have even been created by the reforms in the first place. A group of these
dehqans was enlisted into a group of cavalry men, who were managed directly by the shah and earned steady wages. This was done to decrease the reliance on the Parthian cavalry. Soldiers were also enlisted from Sasanian allies, such as the Hephthalites,
Arabs, and
Daylamites. As a result, the newly rejuvenated Sasanian army proved successful in its efforts in subsequent decades. It sacked the Byzantine city of
Antioch in 540,
conquered Yemen in the 570s, and under the Parthian military commander
Bahram Chobin defeated the Hephthalites and their allies, the
Western Turkic Khaganate, in the
Perso-Turkic war of 588–589. Although the reforms were beneficial for the Empire, they may also have resulted in the decline of the traditional links between the aristocracy and the crown under
Hormizd IV () and
Khosrow II (), to the degree that many belonging to the
wuzurgan class, notably Bahram Chobin of the Mihran family, and later
Shahrbaraz of the same family, were bold enough to dispute the legitimacy of the Sasanian family and lay claims to the throne.
Persecution of Mazdak and his followers With his reforms under way by the 520s, Kavad no longer had any use for Mazdak and he officially stopped supporting the Mazdakites. A debate was arranged where not only the Zoroastrian priesthood but also Christian and Jewish leaders slandered Mazdak and his followers. According to the
Shahnameh, written several centuries later by the medieval Persian poet
Ferdowsi, Kavad had Mazdak and his supporters sent to Khosrow. His supporters were killed in a walled orchard, buried head first with only their feet visible. Khosrow then summoned Mazdak to look at his garden, saying: "You will find trees there that no-one has ever seen and no-one ever heard of even from the mouth of the ancient sages." Mazdak, seeing his followers' corpses, screamed and passed out. He was executed afterwards by Khosrow, who had his feet fastened on a
gallows and had his men shoot arrows at Mazdak. The validity of the story is uncertain; Ferdowsi used much earlier reports of events to write the
Shahnameh, and thus the story may report some form of contemporary memory.
Building projects of
Derbent Many places were founded or re-built under Kavad. He is said to have founded the city
Eran-asan-kerd-Kawad in
Media;
Fahraj in
Spahan; and Weh-Kawad, Eran-win(n)ard-Kawad, Kawad-khwarrah, and
Arrajan in
Pars. He rebuilt
Kirmanshah in Media, which he also used as one of his residences. He is also said to have founded a township in
Meybod, which was named Haft-adhar ("seven fires"), because of a Zoroastrian
fire temple being established there. Its original fire was created by fire brought from seven other temples in Pars, Balkh,
Adurbadagan,
Nisa,
Spahan,
Ghazni, and Ctesiphon. In the
Caucasus, Kavad had new
fortifications built at
Derbent, and ordered the construction of the
Apzut Kawat wall (
Middle Persian:
*Abzūd Kawād, "Kavad increased [in glory]" or "has prospered"). The prominent
Caucasian Albanian capital of
Partaw, which had been rebuilt during the reign of Peroz I and named Perozabad ("the city of Peroz"), was fortified by Kavad and called Perozkavad ("victorious Kavad"). The former Albanian capital of
Kabala, a large urban area that included the headquarters of one of the Albanian bishops, was also fortified by Kavad. He founded the city of
Baylakan, which by most researchers is identified with the ruins of Oren-kala. Ultimately, these extensive buildings and fortifications transformed Caucasian Albania into a bastion of Iranian presence in the Caucasus.
The India trade The Sasanians exerted considerable influence on trade in the region under Kavad. By using the strategic location of the
Persian Gulf, the Sasanians interfered to prevent Byzantine traders from taking take part in the India trade. They accomplished this either by bargaining with trade associates in the
Indian subcontinent—ranging from the
Gupta Empire in the north to the
Anuradhapura monarchs of
Sri Lanka in the south—or by attacking the Byzantine boats. Iranian traders were also able to seize Indian vessels well before they could make contact with Byzantine traders. These advantages resulted in the Iranian traders establishing something resembling a monopoly over the India trade.
Anastasian war The Sasanians and Byzantines had kept peace since the brief
Byzantine–Sasanian War of 440. The last major war between the two empires had been during the reign of
Shapur II (). However, war finally erupted in 502. Bankrupted by his hiatus in 496–498/9, Kavad applied for subsidies to the
Byzantine Empire, who originally had paid the Iranians voluntarily to maintain the defense of the Caucasus against attacks from the north. The Iranians seemingly saw the money as a debt due to them. But now Emperor
Anastasius I () refused subsidies forcing Kavad to attempt to obtain the money by force. In 502, Kavad invaded
Byzantine Armenia with a force that included Hephthalite soldiers. He
captured Theodosiopolis, perhaps with local support; in any case, the city was undefended by troops and weakly fortified. He then marched through southwestern Armenia, reportedly without facing any resistance, and entrusted local governor with the administration of the area. He proceeded to cross the Armenian
Taurus, and reached
Martyropolis, where its governor Theodore, surrendered without any resistance and gave Kavad two years' worth of taxes collected from the province of
Sophene. Because of this, Kavad let Theodore keep his position as governor of the city. Kavad then
besieged the fortress-city of
Amida through the autumn and winter (502–503). The siege proved to be a far more difficult enterprise than Kavad had expected; the defenders, although unsupported by troops, repelled the Iranian assaults for three months before they were finally defeated. He had its inhabitants deported to a city in southern Iran, which he named "Kavad's Better Amida" (
Weh-az-Amid-Kawad). He left a garrison in Amida which included his general Glon, two
marzbans (
margraves) and 3,000 soldiers. The Byzantines failed in their attempt to recapture the city. Kavad then tried unsuccessfully to capture
Edessa in
Osroene. In 505 an invasion of Armenia by the Huns from the Caucasus led to an armistice; the Byzantines paid subsidies to the Iranians for the maintenance of the fortifications on the Caucasus, in return for Amida. The peace treaty was signed by the
Ispahbudhan aristocrat
Bawi, Kavad's brother-in-law. Although Kavad's first war with the Byzantines did not end with a decisive winner, the conquest of Amida was the greatest accomplishment achieved by a Sasanian force since 359, when the same city had been
captured by Shapur II.
Relations with Christianity Kavad's relationship with his Christian subjects is unclear. In Christian Iberia, where the Sasanians had earlier tried to spread Zoroastrianism, Kavad represented himself as an advocate of orthodox Zoroastrianism. In Armenia, however, he settled disputes with the Christians and appears to have continued Balash's peaceful approach. The Christians of Mesopotamia and Iran proper practised their religion without any persecution, despite the punishment of Christians in Iran proper being briefly mentioned . Like Jamasp, Kavad also supported the
patriarch of the Church of the East,
Babai, and Christians served in high offices at the Sasanian court. According to Eberhard Sauer, Sasanian monarchs only persecuted other religions when it was in their urgent political interests to do so. According to the
Chronicle of Seert and the historian
Mari ibn Sulayman, Kavad ordered all the religious communities in the empire to submit written descriptions of their beliefs. This took place sometime before 496. In response to this command, the Patriarch
Aqaq commissioned
Elishaʿ bar Quzbaye, interpreter of the
school of Nisibis, to write for the Church of the East. His work was then translated from
Syriac to Middle Persian and presented to Kavad. This work has since been
lost. Kavad's reign marked a new turn in Sasanian–Christian relations; before his reign,
Jesus had been seen solely as the defender of the Byzantines. This changed under Kavad. According to an apocryphal account in the
Chronicle of Pseudo–Zachariah of Mytilene, written by an anonymous
West Syrian monk at Amida in 569, Kavad saw a vision of Jesus whilst besieging Amida, which encouraged him to remain resolute in his effort. Jesus guaranteed to give him Amida within three days, which happened. Kavad's forces then sacked the city, taking much booty. The city's church was spared, however, due to the relationship between Kavad and Jesus. Kavad was even thought to have venerated a figure of Jesus. According to modern historian Richard Payne, the Sasanians could now be viewed as adherents of Jesus and his saints, if not Christianity itself.
Wars in the east Not much is known about Kavad's wars in the east. According to Procopius, Kavad was forced to leave for the eastern frontier in 503 to deal with an attack by "hostile Huns", one of the many clashes in a reportedly lengthy war. After the Sasanian disaster in 484, all of Khorasan was seized by the Hephthalites; no Sasanian coins minted in the area (Nishapur, Herat, Marw) have been found from his first reign. The increase in the number of coins minted at
Gorgan (which was now the northernmost Sasanian region) during his first reign may indicate a yearly tribute he paid to the Hephthalites. During his second reign, his fortunes changed. A Sasanian campaign in 508 led to the conquest of the Zundaber (Zumdaber) Castellum, associated with the temple of az-Zunin in the area of ad-Dawar, situated between
Bust and
Kandahar. A Sasanian coin dating to 512/3 has been found in Marw. This indicates the Sasanians under Kavad had managed to re-conquer Khorasan after successfully dealing with the Hephthalites.
Negotiations with the Byzantines over the adoption of Khosrow of the
Byzantine emperor
Justin I Around 520 to secure the succession of his youngest son Khosrow, whose position was threatened by rival brothers and the Mazdakite sect, and to improve his relationship with the Byzantine emperor
Justin I, Kavad proposed that he adopt Khosrow. This proposal was greeted initially with enthusiasm by the Byzantine emperor and his nephew,
Justinian. However, Justinian's
quaestor, Proclus, opposed the move concerned over the possibility that Khosrow might attempt to take over the Byzantine throne. The Byzantines made a counter-proposal to adopt Khosrow not as a Roman but as a barbarian. In the end the negotiations did not reach a consensus. Khosrow reportedly felt insulted by the Byzantines, and his attitude towards them deteriorated. Mahbod and Siyawush were the Sasanian diplomats sent to negotiate with the Byzantines. Mahbod accused Siyawush of purposely sabotaging the negotiations. In 531, the Iranians
besieged Martyropolis. During the siege, however, Kavad became ill and died on 13 September. As a result, the siege was lifted and
peace was made between Kavad's successor Khosrow I and Justinian. == Coins ==