 During his term as governor, he reportedly played an important role in the affairs of the eastern portion of the empire.Shapur I died in 270, and was succeeded by Hormizd I, whose rule only lasted one year due to death.Narseh's older brother Bahram I, who was never considered a candidate for succession of the throne by their father, probably due to having a mother of lowly origin, ascended the throne with the aid of the powerful Zoroastrian priest Kartir.