Recently, autosomal and mitochondrial DNA testing have shown conclusively that the mummy is that of a female and, that she was the mother of Tutankhamun.[5] The results also show that she was a full-sister to her husband, the mummy from KV55, and that they were both the children of Amenhotep III and Queen Tiye.[5] There is speculation over the identity of the mummy from KV55 (sister marriage existed), with some Egyptologists, including Zahi Hawass, claiming the mummy is Akhenaten, and others, including anthropologist Joyce Filer, claiming the mummy as Smenkhare. This family relationship would lessen the possibility that the Younger Lady (and, by extension, Tutankhamun's mother) was either Nefertiti, or Akhenaten's secondary wife Kiya, because no known artifact accords either wife titles such as "King's sister" or "King's Daughter".[6] The possibility of the younger lady being Sitamun, Isis, or Henuttaneb is considered unlikely, as they were Great Royal Wives of their father Amenhotep III, and had Akhenaten married any of them, they would have taken the place of Nefertiti as the principal queen of Egypt. The report concludes that the mummy is likely to be Nebetah or Beketaten, daughters of Amenhotep III not known to have married their father, although he is known to have had eight daughters with Queen Tiye.[6](Comment: Figure 2 eAppendix)