240 conquered by Ardashir I (r. 224–242), who made it into the province of Mazun. According to the 8th-century Šahrestānīhā ī Ērānšahr, Ardashir appointed a certain Oshag of Hagar as marzban (general of a frontier province, "margrave") over the "Do-sar and Borg-gil by the wall of the Arabs."[3] He also deported the prominent Azd tribe from Oman to Shihr on the Hadhramaut coast. During the childhood of shah Shapur II (r. 309–379), Arab nomads made several incursions into the Sasanian homeland of Pars, where they raided Gor and its surroundings.[4] Furthermore, they also made incursions into Meshan and Mazun.