High Priests of Amun
At certain times there was an administrative office that presided over all temples and clergies. In the Old Kingdom, kings gave this authority first to their relatives and then to their viziers. In the reign of Thutmose III the office passed from the viziers to the High Priests of Amun, who held it for much of the New Kingdom. The Romans established a similar office, that of the high priest for all Egypt, which oversaw the temple cults until their extinction.