Sobekneferu or Neferusobek ( meaning 'Beauty of Sobek') was a pharaoh of ancient Egypt and the last ruler of the Twelfth Dynasty of the Middle Kingdom. She ascended to the throne following the death of Amenemhat IV, possibly her brother or husband, though their relationship is unproven. Instead, she asserted legitimacy through her father Amenemhat III. Her reign lasted 3 years, 10 months, and 24 days, according to the Turin King List. She adopted the full royal titulary, distinguishing herself from prior female rulers. She was also the first ruler to have a name associated with the crocodile god Sobek. Contemporary evidence for her reign is scant: there are a few partial statues – one with her face – and inscriptions that have been uncovered. It is assumed that the Northern Mazghuna pyramid was intended for her, though this assignment is speculative with no firm evidence to confirm it. The monument was abandoned with only the substructure ever completed. A papyrus discovered in Harageh mentions a place called Sekhem Sobekneferu that may refer to the pyramid. Her rule is attested on several king lists. Family Sobekneferu was the daughter of Pharaoh Amenemhat III, but her mother's identity is unknown. Amenemhat III had two known wives, Aat and an unknown queen, both buried in his pyramid at Dahshur. He had at least one other daughter, Neferuptah, who had a burial at his second pyramid at Hawara that was eventually moved to her own pyramid. Neferuptah appears to have been groomed as Amenemhat III's heir as she had her name enclosed in a cartouche. Evidence of burials of three other princesses – Hathorhotep, Nubhotepet, and Sithathor – were found at the Dahshur complex, but it is not clear whether these princesses were his daughters as the complex was used for royal burials throughout the Thirteenth Dynasty. Amenemhat III's eventual heir, Amenemhat IV, is attested to be the son of Hetepti, though her titulary lacks reference to her being a 'King's Wife'. The relationship between Amenemhat IV and Sobekneferu remains unclear. According to the ancient historian Manetho in Aegyptiaca they were brother and sister. According to Gae Callender they were also probably married. Although, neither the title of 'King's Wife' nor 'King's Sister' are attested for Sobekneferu. Sobekneferu's accession may have been motivated by the lack of a male heir for Amenemhat IV. However, two kings of the Thirteenth Dynasty, Sobekhotep I and