Nebtawyre Mentuhotep IV was the last king of the 11th Dynasty in the Middle Kingdom. He seems to fit into a 7-year period in the Turin Canon for which there is no recorded king.
^Stewart, John (2006). African States and Rulers (Third ed.). London: McFarland. p. 81. ISBN0-7864-2562-8.
^Clayton, Peter A. Chronicle of the Pharaohs: The Reign-by-Reign Record of the Rulers and Dynasties of Ancient Egypt. Thames & Hudson. p72. 2006. ISBN0-500-28628-0