Artaxerxes IV was assassinated in 336 BC, which caused the empire to undergo a period of chaos. This tumultuous transition of power from Artaxerxes IV to Darius III does leave sufficient room for a short-lived Babylonian revolt and there were more well-recorded contemporary uprisings in the Persian Empire; notably, Egypt was in open revolt under Pharaoh Khabash.[17] Darius III himself was originally the satrap of Armenia, gaining the throne after having been in open revolt against Artaxerxes IV.[1] Nidin-Bel's potential rule of Babylon can be dated by the information in the king list.