Amar-Sin
Amar-Sin initially misread as Bur-Sin middle chronology, was the third ruler of the Third Dynasty of Ur. He succeeded Shulgi, who might have been his father. His name translates to 'bull calf of the moon-god'. The name Amar-Sin was not recorded before his ascension and is a "throne name". His original name, and whether he was actually the son of Shulgi, is unknown. It has been proposed that Amar-Sin, Shu-Sin, and Ibbi-Sin were all brothers and sons of Shulgi. Alternatively, it has been suggested that Amar-Sin was a nephew of Shulgi, explaining his difficulties at the beginning and ending of his reign.
Reign
Year-names are known for all nine years of his reign. These record campaigns conducted against Urbilum, and several other regions with obscure names: Shashrum, Shurudhum, Bitum-Rabium, Jabru, and Huhnuri. Amar-Sin is otherwise known to have campaigned against Elamite rulers such as Arwilukpi of Marhashi, and Ur under his reign extended as far as the northern provinces of Lullubi and Hamazi, with their own governors. He also ruled over Assur through the Akkadian governor Zariqum, as confirmed by his monumental inscription.Amar-Sin's reign is notable for his attempt at regenerating the ancient sites of Sumer. He apparently worked on the unfinished ziggurat at Eridu.
The Babylonian Weidner Chronicle records the following: "Amar-Sin... changed the offerings of large oxen and sheep of the Akitu festival in Esagila. It was foretold that he would die from goring by an ox, but he died from the 'bite' of his shoe."