Lista Real de Abidos
Merenre Nemtyemsaf II is attested on the 4th line, column 6 of the Turin canon, a king list redacted in the early Ramesside Period. Although his name is lost in the canon, the duration of its reign is still readable as 1 year and 1 month, following the reign of Pepi II Neferkare. Nemtyemsaf II is also attested on the 39th entry of the Abydos King List, which dates to the reign of Seti I and constitutes one of the best preserved historical records for the end of the Old Kingdom and beginning of the First Intermediate Period. The Abydos king list is the only document where Nemtyemsaf II bears the throne name Merenre. A later historical source also records the existence of Nemtyemsaf II: indeed he is mentioned in Manetho's "Aegyptiaca", a history of Egypt written in the 3rd century BC. Manetho gives Nemtyemsaf II's name as Menthesouphis and credits him with one year of reign.