Deposed
Besides, Hormizd's behavior had now turned so unbearable that his son, Khusrau broke into open revolt. With a civil war brewing in Persia, Hormizd did not survive on the Persian throne for long. The magnates deposed and blinded Hormizd IV and proclaimed his son Khosrau II King.
The sources do not agree on how Hormizd was killed: Theophylact Simocatta states (iv.7) that Khosrau killed him a few days after his father was blinded; the Armenian historian Sebeos (History, Ch.10.75) states that Hormizd's own courtiers killed him.
Read more about this topic: Hormizd IV