Seti II
Merneptah's successor, Seti II, was a son of Queen Isetnofret. However, Seti II's accession to the throne was not unchallenged: a rival king named Amenmesse, who was either another son of Merneptah by Takhat or, much less likely, of Ramesses II, seized control of Upper Egypt and Kush during the middle of the reign of Seti II. Only after he overcame Amenmesse, was Seti able to reassert his authority over Thebes in his fifth year. It is possible that before seizing Upper Egypt, Amenmesse had been known as Messuy and had been viceroy of Kush.