Suristan
Suristan was used as a name in two senses during the Sassanid Persian Empire 226 to 651 AD.
It was used to designate the Persian province of Surestan, roughly the same as today's Syria, as opposed to Asuristan, which was a separate province corresponding to Babylonia. It was also the name of the Sassanid city of Surestan, situated in the Persian province of Middle Bih-Kavad.
