Ur-nigin  Ur-nigin, also Ur-nigina (, "ur-niŋin") or Ur-nigar (, "ur-ni-gar") was a Governor (ensi) of Uruk who lived in 22nd century BCE, according to the Sumerian King List. According to the Sumerian King List, Ur-Nigin destroyed the Akkadian Empire, which had probably already be weakened by the Gutians, and established a short-lived Fifth Dynasty of Uruk. The "Sumerian King List", describing the confusion of the decline of the Akkadian Empire after the death of Shar-kali-shari, mentions the rule of several kings, among them Ur-Nigin: Ur-Nigin is also mentioned in several votive inscriptions by his son Ur-gigir. One of them reads:  The Fourth Dynasty of Uruk was finally destroyed by the Gutian Dynasty.