Ishbi-Erra

Ishbi-Erra was the founder of the dynasty of Isin, reigning from c. 2018 — c. 1985 BC. Ishbi-Erra was preceded by Ibbi-Sin of the 3rd Dynasty of Ur in ancient Lower Mesopotamia, and then succeeded by Shu-Ilishu. According to the Weld-Blundell Prism, Išbi-erra reigned for 33 years and this is corroborated by the number of his extant year-names. While in many ways this dynasty emulated that of the preceding one, its language was Akkadian as the Sumerian language had become moribund in the latter stages of the third dynasty of Ur.