Washington - Egyptologists researching a mummy first discovered in 1898 believe it is the mummy of Queen Nefertiti, a legendary beauty and wife of the renegade pharaoh Akhenaten, the Discovery Channel said on Monday. Virtually all traces of Nefertiti and her "heretic" husband, who ruled from 1353-1336 BC, were erased after his unsuccessful attempt to overthrow the pantheon of the gods to worship the sun god Aton - among the earliest known practices of monotheism. Nefertiti also was stepmother of the boy-king Tutankhamen, whose tomb was discovered in 1922.