Nebet (“Lady”; ) was created vizier during the late Old Kingdom of Egypt by King Pepi I of the Sixth Dynasty, who was her son-in-law. As the mother‑in‑law of Pepy I, she was one of the earliest recorded female viziers in ancient Egyptian history. Two other contemporary female viziers were Inenek‑Inti, a wife of Pepy I, and Meritites IV (also known as Meritites II), a daughter of Pepy I. The next female vizier did not appear until the 26th Dynasty.Naguib Kanawati, Conspiracies in the Egyptian Palace: Unis to Pepy I, London - New York, 2003, p. 173
She was the wife of the nobleman Khui, who was overseer of the Pyramid City.
Her daughters, the Queens Ankhesenpepi I and Ankhesenpepi II were, respectively, the mothers of the Kings Merenre Nemtyemsaf and Pepi II.
Her son Djau, who had a tomb in Abydos became vizier for his nephews, the kings. She is mentioned in his tomb.
Nebet was a contemporary of Weni the Elder.
Her titles include: Hereditary Princess (jrjt-pꜥt), Daughter of Geb (zꜣt Gbb); Countess (ḥwtjꜥ), Daughter of Mrḥw (zꜣt Mrḥw); She of the Curtain (tꜣtjtj), Judge (zꜣb), Vizier (tꜣtj), Daughter of Thoth (zꜣt Ḏḥwty); Companion of the King of Lower Egypt (smrt bjtj), Daughter of Horus (zꜣt Ḥr).
References
Sources , pp. 19, 76-77.