Nefertiti's name, Egyptian "Nfr.t-jy.tj", can be translated as "The Beautiful Woman has Come". Nefertiti's parentage is not known with certainty, but one often cited theory is that she was the daughter of Ay, later to be pharaoh. One major problem of this theory is that neither Ay or his wife Tey are explicitly called the father and mother of Nefertiti in existing sources. In fact, Tey's only connection with her was that she was the "nurse of the great queen" Nefertiti, an unlikely title for a queen's mother. At the same time, no sources exist that directly contradict Ay's fatherhood which is considered likely due to the great influence he wielded during Nefertiti's life and after her death. To solve this problem, it has been proposed that Ay had another wife before Tey, named Iuy, whose existence and connection to Ay is suggested by some evidence. According to this theory, Nefertiti was the daughter of Ay and Iuy, but her mother died before her rise to the position of queen, whereupon Ay married Tey, making her Nefertiti's step-mother. Nevertheless, this entire proposal is based on speculation and conjecture.