Valashabad (also spelled as Valakhshkert, Valakhshgerd and Valakhshkard), known in
Greek sources as Vologesocerta, and in
Arabic sources as Sabat (ساباط), was an ancient city in present-day
Iraq, and formed a suburb of
Ctesiphon, the capital of the
Parthian Empire and their successors, the
Sasanian Empire.
The city was founded by the Parthian king
Vologases I (r. 51-78) and was captured in 226 by the Sasanians. In 636,
the city was attacked by Muslim Arabs under the
Arab general
Khalid ibn Urfuta. At Valashabad stood a force of troops, which the former Sasanian monarch
Borandukht saw as an important part of the survival of the Sasanian Empire, were annihilated by the Arabs, who were joined by the former Sasanian general Shirzadh, who aided them in capturing
Veh-Ardashir, another suburb of Ctesiphon.