All of his changes to established lifeways were possibly no more than a move to lessen the political power of the priesthood. The Pharaoh, not the priests, became the sole link between the people and the god Aten which effectively put an end to the power of many temples. It is generally accepted that Akhenaten and his wife Nefertiti had six daughters; Meritaten, Meketaten, Ankhenspaaten, Neferneferuaten, Neferneferure and Setepenre, as no son was ever shown in the many reliefs depicting the family.
Akhenaten died about 1334 BC, probably in the 16th or 17th year of his reign, putting him in his thirties at the time of his death. He was buried at his new capital, Amarna initially but it is almost certain that his body did not remain at there. It has been suggested that he was reburied in the notoriously mysterious tomb KV55 in the Valley of the Kings, Thebes, though other possibilities are just as likely.
His remains have never been positively identified.
After Akhenaten's death, the temples of Aten and many of his buildings and monuments were demolished, Egypt returned to polytheism and the capitol to Thebes.
Most think that KV55 was in fact used for the reburial of a mummy and funerary equipment that had originally been interred in a royal tomb or tombs at El-Amarna. Unfortunately, it is impossible to determine which of the many names found on the objects in the tomb belonged to the skeletal remains found in the gilded wooden coffin.
The linguist Sir Alan Gardiner argued that the titles showed that the coffin had been made for Akhenaten. Other scholars, however, have noted that the inscriptions were altered at some point, and it has been suggested that the coffin’s occupant might not be its original owner. Most agree that it is a male.
The bones belong to a male, with an elongated skull. This trait is found in artistic representations of Akhenaten and his family, and can also be seen in the mummy of Tutankhamun, who may have been Akhenaten’s son. In addition, the KV55 mummy shares a blood type with Tut; studies have indicated that the remains from the Amarna Cache belonged to an individual closely related to Tutankhamun.
Most previous forensic studies have concluded that the skeleton belonged to a man who died in his early 20s, or at the latest about 35. Historical sources indicate that Akhenaten must have been well over 30 at his death. The majority of Egyptologists, therefore, are inclined to believe that the KV55 mummy is that of Smenkhkare, likely father, son, or brother to Tutankhamun. Smenkhkare ruled 1338-1336 BC. .
Weigall, A. (1922). The mummy of Akhenaton. The Journal of Egyptian Archaeology, 8(3/4), 193-200.