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Roman–Parthian War of 161–166

Roman–Parthian war of 161–166
Part of the Roman–Parthian Wars
Date 161–166 AD
Location Armenia, Mesopotamia and Media
Result Arsacids re-established on Armenian throne as Roman clients
Ctesiphon and Seleucia sacked
Territorial
changes
Minor Roman gains in upper Mesopotamia
Belligerents
 Roman Empire Parthian Empire
Commanders and leaders
Roman Empire Lucius Verus
Roman Empire Avidius Cassius
Roman Empire Marcus Claudius Fronto
Vologases IV of Parthia
Chosrhoes

The Roman–Parthian War of 161–166 (also called the Parthian War of Lucius Verus) was fought between the Roman and Parthian Empires over Armenia and Upper Mesopotamia. It concluded in 166 after the Romans made successful campaigns into lower Mesopotamia and Media and sacked Ctesiphon, the Parthian capital.

On his deathbed in the spring of 161, Emperor Antoninus Pius had spoken of nothing but the state and the foreign kings who had wronged him. One of those kings, Vologases IV of Parthia, made his move in late summer or early autumn 161. Vologases entered the Kingdom of Armenia (then a Roman client state), expelled its king and installed his own—Pacorus, an Arsacid like himself. At the time of the invasion, the governor of Syria was Lucius Attidius Cornelianus. Attidius had been retained as governor even though his term ended in 161, presumably to avoid giving the Parthians the chance to wrong-foot his replacement. The governor of Cappadocia, the front-line in all Armenian conflicts, was Marcus Sedatius Severianus, a Gaul with much experience in military matters. But living in the east had a deleterious effect on his character.

The confidence man Alexander of Abonutichus, a prophet who carried a snake named Glycon around with him, had enraptured Severianus, as he had many others. Father-in-law to the respected senator Publius Mummius Sisenna Rutilianus, then-proconsul of Asia, Abonutichus was friends with many members of the east Roman elite. Alexander convinced Severianus that he could defeat the Parthians easily, and win glory for himself. Severianus led a legion (perhaps the IX Hispana) into Armenia, but was trapped by the great Parthian general Chosrhoes at Elegia, a town just beyond the Cappadocian frontiers, high up past the headwaters of the Euphrates. Severianus made some attempt to fight Chosrhoes, but soon realized the futility of his campaign, and committed suicide. His legion was massacred. The campaign had only lasted three days.


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