The royal family of Khufu was quite large. It is uncertain if Khufu was actually the biological son of Sneferu. Mainstream Egyptologists believe Sneferu was Khufu's father, but only because it was handed down by later historians that the eldest son or a selected descendant would inherit the throne. In 1925 the tomb of queen Hetepheres I, G 7000x, was found east of Khufu's pyramid. It contained many precious grave goods, and several inscriptions give her the title Mut-nesut (meaning "mother of a king"), together with the name of king Sneferu. Therefore, it seemed clear at first that Hetepheres was the wife of Sneferu, and that they were Khufu's parents. More recently, however, some have doubted this theory, because Hetepheres is not known to have borne the title Hemet-nesut (meaning "king's wife"), a title indispensable to confirm a queen's royal status. Instead of the spouse's title, Hetepheres bore only the title Sat-netjer-khetef (verbatim: "daughter of his divine body"; symbolically: "king's bodily daughter"), a title mentioned for the first time. As a result, researchers now think Khufu may not have been Sneferu's biological son, but that Sneferu legitimised Khufu's rank and familial position by marriage. By apotheosizing his mother as the daughter of a living god, Khufu's new rank was secured. This theory may be supported by the circumstance that Khufu's mother was buried close to her son and not in the necropolis of her husband, as it was to be expected.