 The name of Yazdegerd is known in other languages as; Pahlavi "Yazdekert"; New Persian "Yazd(e)gerd"; Syriac "Yazdegerd", "Izdegerd", and "Yazdeger"; Armenian "Yazdkert"; Talmudic "Izdeger" and "Azger"; Arabic "Yazdeijerd"; Greek "Isdigerdes".Yazdegerd was the son of prince Shahriyar and the grandson of the last prominent shah of Iran, Khosrow II (), who was in 628 overthrown and executed by his own son Kavad II, who proceeded to have all his brothers and half-brothers executed, including Shahriyar.This dealt a heavy blow to the empire, which it would never recover from.