The name of four pharaohs of the 18th Dynasty of Egypt, 1390-1353 BC. Amenhotep III (Amenhotep the Magnificent) was the most powerful, reigning 1514-1593 BC. He was preceded by Amenhotep I (1514-1493 BC) and Amenhotep II (c 1426-1400 BC) and succeeded by Amenhotep IV (1352-1336 BC), who was better known by his adopted name of Akhenaten. The name meant "Amun is content". Amenhotep I the founder of the dynasty extended Egypt's boundaries in Nubia (modern Sudan). Amenhotep III devoted himself to promoting diplomacy and to extensive building in Egypt and Nubia. Amenhotep IV tried to establish the monotheistic cult of Aten.