Ниусерра
Two competing hypotheses exist in Egyptology to describe the succession of events running from the death of Neferirkare Kakai, third king of the Fifth Dynasty, to the coronation of Nyuserre Ini, sixth ruler of the dynasty. Relying on historical sources, most notably the Saqqara king list and Manetho's "Aegyptiaca", where Neferefre is said to have succeeded Shepseskare, many Egyptologists such as Jürgen von Beckerath and Hartwig Altenmüller have traditionally believed that the following royal succession took place: Neferirkare Kakai → Shepseskare → Neferefre Isi → Nyuserre Ini. In this scenario, Neferefre would be the father of Nyuserre, who would have become pharaoh after the former's unexpected death.