Mentuhotep I

Mentuhotep I (also Mentuhotep-aa, i.e. "the Great") may have been a Theban nomarch and independent ruler of Upper Egypt during the early First Intermediate Period. Alternatively, Mentuhotep I may be a fictional figure created during the later Eleventh Dynasty, which rose to prominence under Intef II and Mentuhotep II, playing the role of a founding father.

Source: Wikipedia — https://en.wikipedia.org/wiki/Mentuhotep_I