The Gutian dynasty (Sumerian: 𒄖𒋾𒌝𒆠, gu-ti-umKI) was a line of kings, originating among the Gutian people. Originally thought to be a horde that swept in and brought down Akkadian and Sumerian rule in Mesopotamia, the Gutians are now known to have been in the area for at least a century by then. By the end of the Akkadian period, the Sumerian city of Adab was occupied by the Gutians, who made it their capital.[1][2] The Gutian Dynasty came to power in Mesopotamia near the end of the 3rd millennium BC, after the decline and fall of the Akkadian Empire. How long Gutian kings held rulership over Mesopotamia is uncertain, with estimates ranging from a few years up to a century. The end of the Gutian dynasty is marked by the accession of Uruk ruler Utu-hengal (c. 2055–2048 BC), marking the short-lived "Fifth dynasty of Uruk", followed by Ur ruler Ur-Nammu (c. 2047–2030 BC), founder of the Third Dynasty of Ur.