Amenemhet II (äˌmĕnĕmˈhĕt, āˌ–) [key], d. 1903 B.C., king of ancient Egypt, of the XII dynasty; son and successor of Sesostris I. He was coregent with his father (1938–1935 B.C.), then sole ruler (1935–1906 B.C.), finally coregent with his son and successor, Sesostris II. He reopened the mines of Sinai.
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