Gutian dynasty of Sumer

The Gutian dynasty came to power in Mesopotamia around 2150 BC (short chronology), by destabilising Akkad, according to the Sumerian kinglist at the end of the reign of king Ur-Utu (or Lugal-melem) of Uruk. They reigned for perhaps around one century (copies of the kinglist vary between 25 and 124 years; 91 years is often quoted as probable). The dynasty was succeeded by the 3rd dynasty of Ur. The Gutian people (Guti) were native to Gutium, presumably in the central Zagros Mountains, though almost nothing is known about their origins.