|Roman–Sassanid War of 421–422|
|Part of the Roman-Persian Wars|
Roman - Sassanid frontier
|Eastern Roman Empire||Sassanid Empire|
|Commanders and leaders|
The Roman–Sassanid war of 421–422 was a conflict between the Eastern Roman Empire and the Sassanids. The casus belli was the persecution of Christians by the Sassanid king Bahram V, which had come as a response to attacks by Christians against Zoroastrian temples; the Christian Eastern Roman Emperor Theodosius II declared war and obtained some victories, but in the end the two powers agreed to sign a peace on the status quo ante.
In 421, Bahram V succeeded his father Yazdegerd I, who shortly before he had been killed, began a persecution of Christians as reprisal for attacks against Zoroastrian temples by Christians during his reign; Bahram continued this persecution, during which many died. Among them there was James Intercisus, a political counsellor of Yazdegerd's, who had converted to Zoroastrianism but then converted back to Christianity.
The persecuted Christians fled to Roman territory, and were welcomed by the bishop of Constantinople, Atticus, who informed the Emperor of the persecution. The Eastern Roman Emperor Theodosius II was at the time deeply influenced by his religious sister Pulcheria, and had become more and more interested in Christianity.
The Roman-Sassanid relationship already had some friction. The Persians had hired some Roman gold-diggers, but now refused to send them back; furthermore, the Sassanids seized the properties of Roman merchants.
So, when Persian ambassadors reached the Roman court to ask for the fugitives, Theodosius choose to break the peace and declare war, rather than giving them back.
The commander-in-chief of the Roman army was Ardaburius, who, incidentally, came from the Iranian tribe of the Alans. Ardaburius needed to collect many troops for his campaign. Theodosius, therefore, allowed some Pannonian Ostrogoths to settle in Thracia, to defend the province from the Huns while the Thracian Roman troops were sent to the East.
Ardaburius sent Anatolius to Persarmenia, where he joined the rebels, while Ardaburius entered in Persian territory and devastated Arzanene. The general of the Sassanid army, Narses, moved with his troops against Ardaburius, and engaged the Romans in battle, but was defeated and forced to retreat. Narses planned to attack Mesopotamia, a Roman province that had been left unguarded, and moved there, but Ardaburius foresaw his enemy's plan and reached Mesopotamia.
Ardaburius received reinforcements and put the fortress of Nisibis under siege. Bahram allied with the Lakhmid Arabs of Alamundarus (Al-Mundhir I of Hirah), who, however, were dispersed by the Romans. In the meantime, the King of the Huns, Rua, had attacked the dioceses of Dacia and Thracia and had even menaced Constantinople; at the same time, a large Persian army moved towards Nisibis. To avoid a war on two fronts, Theodosius then recalled Ardaburius back.
Siege of Theodosiopolis
According to a Roman ecclesiastical source, the Sassanids besieged Theodosiopolis for 30 days, with thousands of soldiers and even siege engines (that the source calls helepolis). According to this source, the Romans did not try to aid the besieged, but the Sassanid were convinced to lift the siege when the bishop of the city, Eunomius, had a stone-thrower, named after Thomas the Apostle, kill a lesser king of the Sassanid army.
Despite the evident religious theme of this account, the passage is important as it testifies an unsuccessful Sassanid attack on Theodosiopolis. This could be the Theodosiopolis in Armenia, and in this case the siege should be dated in 421, while Narses was in Mesopotamia, or Theodosiopolis in Osroene, and in this case the attack should be dated after the Roman retreat from Nisibis.
The peace treaty that ended the war (422) was negotiated by the magister officiorum Helio. It returned everything to the situation before the war (status quo ante bellum). Both parts agreed to reject Arab defectors of the other part, as well as to guarantee liberty of religion in their territories.
The Romans, however, were obliged to give an annual tribute to the Huns.
- "...in 419 or 420 a series of Christian attacks on Magian fire-temples provoked the Sasanian government to a savage persecution of Christians, which in turn led to war between the two empires in 421–422.The incidents that provoked the persecution are described in Persian Christian martyr acts preserved in Syriac, and in a corresponding account in Theodoret. The initial response of the Persian king was surprisingly lenient. Hearing that bishop Abda of Hormizd-Ardashir, or one of his priests, had destroyed a temple, he sent for him, complained “in moderate language,” and ordered him to rebuild the temple...When the ascetic Narsai was arrested for destroying a temple, the king even offered to drop the matter if Narsai would simply deny that he had done the deed. Abda refused to rebuild the temple, and Narsai refused to renounce his action. For their stubbornness, both were executed. At this point the king exhausted his patience and launched a general persecution against the church."There is no crime for those who have Christ: religious violence in the Christian Roman empire, University of California Press, 2005, pg. 196
- Among whom a unit in which was enlisted an obscure soldier, Marcian, Emperor in 450, who however fell ill in Lycia and did not take part to the war (Theophanes, AM 5943).
- Theodoretus, V.37.6-10.
- Dodgeon, p. 258, n. 50.
- Malchus, fragment 1.4-7.
- Chr. Arb., 16.
- Stephen Williams, Gerard Friell, The Rome that did not fall: the survival of the East in the fifth century, Routledge, 1999, ISBN 0-415-15403-0, p. 31.
- Warren T. Treadgold, A history of the Byzantine state and society, Stanford University Press, 1997, ISBN 0-8047-2630-2, p. 90.
- Michael Gaddis, There is no crime for those who have Christ: religious violence in the Christian Roman empire, University of California Press, 2005, ISBN 0-520-24104-5, pgs. 196-197
The most complete account of the war is preserved in Socrates Scholasticus, Historia Ecclesiastica VII.18, but some passages are included by Theodoret in his Historia Ecclesiastica. English translations of these sections are present in:
- Michael H. Dodgeon, Samuel N. C. Lieu, Geoffrey Greatrex, The Roman Eastern Frontier and the Persian Wars, Part 2, CRC Press, 2002, ISBN 0-203-99454-X, p. 38-41.
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