Ramessesnakht was High Priest of Amun during many years in the 20th Dynasty. He was appointed as the High Priest at Thebes under Ramesses IV. He served in office until the reign of Ramesses IX. It was during Ramessesnakht's tenure that the power and importance of the Amun priesthood grew over Egypt while the Pharaoh's power began to noticeably decline.

Usermaatre Heqamaatre Setepenamun Ramesses IV was the third pharaoh of the Twentieth Dynasty of the New Kingdom of Ancient Egypt. He was the second son of Ramesses III and became crown prince when his elder brother Amenherkhepshef died aged 15 in 1164 BC, when Ramesses was only 12 years old. His promotion to crown prince:is suggested by his appearance in a scene of the festival of Min at the Ramesses III temple at Karnak, which may have been completed by Year 22 [of his father's reign].