Ay's reign was preceded by that of Tutankhamun, who ascended to the throne at the age of eight or nine, at a time of great tension between the new monotheism and the old polytheism. He was assisted in his kingly duties by his predecessor's two closest advisors: Grand Vizier Ay and General of the Armies Horemheb. Tutankhamun's nine-year reign, largely under Ay's direction, saw the return of the old gods – and, with that, the restoration of the power of the Amun priesthood, who had lost their influence over Egypt under Akhenaten.