Tutankhamun took the throne at eight or nine years of age under the unprecedented viziership of his eventual successor, Ay, to whom he may have been related. He married his half sister Ankhesenamun. During their marriage they lost two daughters, one at 5–6 months of pregnancy and the other shortly after birth at full-term. His names—Tutankhaten and Tutankhamun—are thought to mean "Living image of Aten" and "Living image of Amun", with Aten replaced by Amun after Akhenaten's death. There are Egyptologists[who?] that believe the translation may be more like; "The-life-of-Aten-is-pleasing" or "One-perfect-of-life-is-Aten".