Ur-Nammu (or Ur-Namma, Ur-Engur, Ur-Gur, Sumerian: , ruled c. 2112 BC – 2094 BC middle chronology, or possibly c. 2048–2030 BC short chronology) founded the Sumerian Third Dynasty of Ur, in southern Mesopotamia, following several centuries of Akkadian and Gutian rule. His main achievement was state-building, and Ur-Nammu is chiefly remembered today for his legal code, the Code of Ur-Nammu, the oldest known surviving example in the world. He held the titles of "King of Ur, and King of Sumer and Akkad".