Sumu-Abum (also Su-abu) was an Amorite, and the first King of the

First Dynasty of Babylon The Old Babylonian Empire, or First Babylonian Empire, is dated to BC – BC, and comes after the end of Sumerian power with the destruction of the Third Dynasty of Ur, and the subsequent Isin-Larsa period. The chronology of the first dynasty ...

(the ''Amorite Dynasty''). He reigned between 1830–1817 BC (

short chronology The chronology of the ancient Near East is a framework of dates for various events, rulers and dynasties. Historical inscriptions and texts customarily record events in terms of a succession of officials or rulers: "in the year X of king Y". Com ...

) or between 1897–1883 BC ( middle chronology). He freed a small area of land previously ruled by the fellow Amorite city state of

Kazallu Kazalla or Kazallu is the name given in Akkadian sources to a city in the ancient Near East whose locations is unknown. Its god is Numushda. History Under its king Kashtubila, Kazalla warred against Sargon of Akkad in the 24th or 23rd century BC. S ...

which included Babylon, then a minor administrative center in southern Mesopotamia. Sumu-Abum (and the three Amorite kings succeeding him) makes no claim to be ''King of Babylon'', suggesting that the town was at this time still of little importance. He is known to have become king of Kisurra. Year names of Sumu-Abum of Babylon - CDLI
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References

19th-century BC Babylonian kings 19th-century BC rulers First dynasty of Babylon {{ANE-bio-stub