International Standard Version Manasseh began to reign at the age of twelve, and he reigned for 55 years in Jerusalem. His mother was named Hephzibah.
American Standard Version Manasseh was twelve years old when he began to reign; and he reigned five and fifty years in Jerusalem: and his mother's name was Hephzibah.
Young's Literal Translation A son of twelve years is Manasseh in his reigning, and fifty and five years he hath reigned in Jerusalem, and the name of his mother is Hephzi-Bah;