Tutankhamun or Tutankhamen (Ancient Egyptian: twt-ꜥnḫ-jmn; c. 1341 BC – c. 1323 BC), was the thirteenth pharaoh of the Eighteenth Dynasty of ancient Egypt, who ruled c. 1333 – 1323 BC. Born Tutankhaten, he instituted the restoration of the traditional polytheistic form of ancient Egyptian religion, undoing a previous shift to the religion known as Atenism. Tutankhamun's reign is considered one of the greatest restoration periods in ancient Egyptian history, and his tomb door proclaims his dedication to illustrative constructions of the ancient Egyptian gods.
His endowments and restorations of cults were recorded on the Restoration Stela. The cult of the god Amun at Thebes was restored to prominence, and the royal couple changed their names to "Tutankhamun" and "Ankhesenamun", replacing the -aten suffix. He also moved the royal court from Akhenaten's capital, Amarna, back to Memphis almost immediately on his accession to the kingship. He reestablished diplomatic relations with the Mitanni and carried out military campaigns in Nubia and the Near East. Tutankhamun was one of only a few kings known to be worshipped as a deity during their lifetime. He likely began construction of a royal tomb in the Valley of the Kings and an accompanying mortuary temple, but both were unfinished at the time of his death.