Senusret I (also Sesostris I and Senwosret I) was the second pharaoh of the Twelfth Dynasty of Egypt. He ruled from 1971 BC to 1926 BC, and was one of the most powerful kings of this Dynasty. He was the son of Amenemhat I and his wife Nefertitanen. His wife and sister was Neferu. She was also the mother of the successor Amenemhat II. Senusret I was known by his prenomen, Kheperkare, which means "the Ka of Re is created."