Ctesiphon was an ancient city in modern Iraq, on the eastern bank of the Tigris, about 35 kilometres (22 mi) (22 mi) southeast of Baghdad. Ctesiphon served as a royal capital of the Iranian empires for over eight hundred years, in the Parthian and Sasanian periods. It fell in 637, during the Muslim conquest of Persia.
- Country
- Iraq, Rashidun Caliphate, Parthian Empire
- Inception
- 120 BC
