 Bahram II, while still in his teens, ascended the throne with the aid of the powerful Zoroastrian priest Kartir just like his father had done.He was met with considerable challenges during his reign, facing a rebellion in the east led by his brother, the Kushano-Sasanian dynast Hormizd I Kushanshah, who assumed the title of King of Kings, possibly laying claims to the Sasanian throne.Another rebellion, led by Bahram II's cousin Hormizd of Sakastan in Sakastan, also occurred around this period.