Lugal-zage-si

Lugal-Zage-Si of Umma was the last Sumerian king before the conquest of Sumer by Sargon of Akkad and the rise of the Akkadian Empire, and was considered as the only king of the third dynasty of Uruk, according to the Sumerian King List. Initially, as king of Umma, he led the final victory of Umma in the generation-long conflict with the city-state Lagash for the fertile plain of Gu-Edin. Following up on this success, he then united Sumer briefly as a single kingdom.