It has also been proposed that Nefertiti was Akhenaten's full sister, though this is contradicted by her titles which do not include those usually used by the daughters of a Pharaoh. Another theory about her parentage that gained some support identified Nefertiti with the Mitanni princess Tadukhipa, partially based on Nefertiti's name ("The Beautiful Woman has Come") which has been interpreted by some scholars as signifying a foreign origin. However, Tadukhipa was already married to Akhenaten's father and there is no evidence for any reason why this woman would need to alter her name in a proposed marriage to Akhenaten, nor any hard evidence of a foreign non-Egyptian background for Nefertiti.