Name that was adopted by the pharaoh Amenhotep IV of the 18th Dynasty. This pharaoh broke with religious tradition by worshipping only one god, Aten, and by denying the existence of all other gods. He transferred his residence from Thebes to a previously unoccupied region, called by him Akhetaten ('horizon of the Aten'). The remains of the city are nowadays known as El-`Amarna.