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Parentage

His parentage is debated as they are not attested in surviving inscriptions. He was certainly a prince, as a fragmentary inscription from Hermopolis refers to "Tutankhuaten" as a "king's son". He is generally thought to have been the son of Akhenaten or his successor Smenkhkare. Inscriptions from Tutankhamun's reign treat him as a son of Akhenaten's father, Amenhotep III, but that is only possible if Akhenaten's 17-year reign included a long co-regency with his father, a possibility that many Egyptologists once supported but is now being abandoned. His mother has been variously suggested to be Akhenaten's chief wife Nefertiti, or Akhenaten's daughters Meritaten or Meketaten. Tutankhamun was wet nursed by a woman named Maia, known from her tomb at Saqqara.

DNA testing identified his father as the mummy from tomb KV55, thought to be Akhenaten, and his mother as " The Younger Lady ", an anonymous mummy cached in tomb KV35. His parents were full siblings, both being children of Amenhotep III and his chief wife Tiye. The identity of The Younger Lady is unknown but she cannot be Nefertiti, as she was not known to be a sister of Akhenaten. However, researchers such as Marc Gabolde and Aidan Dodson claim that Nefertiti was indeed Tutankhamun's mother. In this interpretation of the DNA results, the genetic closeness is not due to a brother-sister pairing but the result of three generations of first-cousin marriage, making Nefertiti a first cousin of Akhenaten. The validity and reliability of the genetic data from mummified remains has been questioned due to possible degradation due to decay.