 Shapur I died in 270, and was succeeded by Hormizd-Ardashir (who became known as Hormizd I), who ruled from May 270 until his death in June 271.Bahram I, who was never considered a candidate for succession of the throne by his father, ascended with the aid of the powerful Zoroastrian priest Kartir.He then made a settlement with Narseh, who agreed to give up his entitlement to the throne in return for the governorship of the important frontier province of Armenia, which was constantly the source of war between the Roman and Sasanian Empires.