Wikipedia
Adad-šuma-uṣur, inscribed IM-MU-ŠEŠ, meaning "O Adad, protect the name!," and dated very tentatively ca. 1216–1187 BC ( short chronology), was the 32nd king of the 3rd or Kassite dynasty of Babylon and the country contemporarily known as Karduniaš. His name was wholly Babylonian and not uncommon, as for example the later Assyrian King Esarhaddon (681–669 BC) had a personal exorcist, or ašipu, with the same name who was unlikely to have been related. He is best known for his rude letter to Aššur-nirari III, the most complete part of which is quoted below, and was enthroned following a revolt in the south of Mesopotamia when the north was still occupied by the forces of Assyria, and he may not have assumed authority throughout the country until around the 25th year of his 30-year reign, although the exact sequence of events and chronology remains disputed.