Akhenaten (born Amenhotep IV) was the Pharaoh of Egypt between 1353 and 1336 BC. He is best known for replacing the official Egyptian pantheon with a new, quasi-monotheistic religion centered around the veneration of a solar deity called the Aten. So devoted was he to this new faith of his that he seems to have neglected other aspects of running the kingdom, not to mention foreign affairs. In the end, Akhenaten became so unpopular that, after his death, his monuments and sculptures were desecrated, his name omitted from later official lists of Egypt’s rulers, and his whole “Atenism” cult driven out in favor of the traditional Egyptian belief system.
Most statues and depictions of Akhenaten from his lifetime depict him as having strange physical features such as drooping “feminine” breasts and a plump belly, which some Egyptologists have interpreted as a sign that he had something like Marfan syndrome. Personally, I think it likely that the pampered Pharaoh was just plain fat and that his artisans tried to represent this in a way that would flatter his ego.