Wikipedia
Nazi-Maruttaš, typically inscribed Na-zi-Ma-ru-ut-ta-aš or Na-zi-Múru-taš, Maruttaš (a Kassite god synonymous with Ninurta) protects him, was a Kassite king of Babylon ca. 1307–1282 BC ( short chronology) and self-proclaimed šar kiššati, or “King of the World,” according to the votive inscription pictured. He was the 23rd of the dynasty, the son and successor of Kurigalzu II, and reigned for twenty six years.
His reign can be seen as the peak of the Kassite Dynasty's prominence and subsequently Kassite culture declined, exemplified by his successful military campaigns against Assyria and Elam, the glyptic style of cylinder seals, the literature inspired by him ( Hemerology for Nazi-Maruttaš) and his appearance in the period piece Ludlul bēl nēmeqi, which was set during his reign.