| Ardashir II 𐭠𐭥𐭲𐭧𐭱𐭲𐭥 | |
|---|---|
| King of Kings of Iran and non-Iran[a] | |
 Relief of Ardashir II in Taq-e Bostan | |
| King of Adiabene | |
| Reign | 344 – 376 |
| Predecessor | Unknown |
| Successor | Title abolished; Adiabene transformed into a province |
| Shahanshah of the Sasanian Empire | |
| Reign | 379 – 383 |
| Predecessor | Shapur II |
| Successor | Shapur III |
| Born | 309/10 |
| Died | 383 |
| House | House of Sasan |
| Father | Hormizd II |
| Religion | Zoroastrianism |
Ardashir II (Middle Persian: 𐭠𐭥𐭲𐭧𐭱𐭲𐭥, romanized: Ardašīr), was the Sasanian King of Kings (shahanshah) of Iran from 379 to 383. He was the brother of his predecessor, Shapur II (r. 309–379), under whom he had served as vassal king of Adiabene, where he fought alongside his brother against the Romans. Ardashir II was appointed as his brother's successor to rule interimly till the latter's son Shapur III reached adulthood. Ardashir II's short reign was largely uneventful, with the Sasanians unsuccessfully trying to maintain rule over Armenia.
Ardashir II was seemingly a strong-willed character, and is known in some sources by the epithet of nihoukar ("the beneficent").
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