Ctesiphon – Wikipedia

Ctesiphon ( TESS-if-on; Middle Persian: 𐭲𐭩𐭮𐭯𐭥𐭭, Tyspwn or Tysfwn; Persian: تیسفون; Ancient Greek: Κτησιφῶν, Attic Greek: [ktɛːsipʰɔ̂ːn]; Syriac: ܩܛܝܣܦܘܢ) 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. Ctesiphon developed into a rich commercial metropolis, merging with the surrounding cities along both shores of the river, including...