Hatshepsut was an Egyptian Pharaoh who reigned during the 18th Dynasty and was the mother and aunt of Thutmose III. (PROSE: Wardenclyffe) She was one of a small number of Pharaohs that were female. (PROSE: The Last Pharaoh)
Bernice Summerfield met her, found out she was the Pharaoh of the sky, and traded with the stars using her spaceship, the Ship of a Billion Years. She was expecting to meet Sarah Jane Smith.
She had the Seventh Doctor as her advisor and confided in Bernice about her policies. (AUDIO: The Eye of Horus)