Kurigalzu II was the 22nd king of the Kassite or 3rd dynasty that ruled over Babylon. In more than twelve inscriptions, Kurigalzu names Burna-Buriaš II as his father. Kurigalzu II was placed on the Kassite throne by the Assyrian kingAššur-Uballiṭ I, reigned during a period of weakness and instability for twenty five years, eventually turning on his former allies and quite possibly defeating them at the battle of Sugagu. He was once thought to have been the conqueror of the Elamites but this now tends to be assigned to the earlier king of this name, together with the Chronicle P account. There is a gap of a little over forty years between his reign and that of his earlier namesake, Kurigalzu I and, as it was not customary to assign regnal year numbers, and they both had lengthy reigns, this makes it exceptionally difficult to distinguish for whom an inscription is intended. A few royal inscriptions are clearly assignable to Kurigalzu II since they give the name of his father, Burna-Buriaš, but these record either the dedication of objects, such as eye stones, beads, axe-heads, etc., or appear on the cylinder seals of his servants, such as the accountant, Uballissu-Marduk. 167 economic texts, mostly from Nippur, are assigned to him based on the style of the date formula and record up to the 24th year of his reign.
Biography
Accession
Kurigalzu II owed his throne to the Assyrians. Burna-Buriaš’ brief successor, Kara-ḫardaš, had been murdered during a coup d'état by the Kassite army, who had elevated an otherwise unremarkable Nazi-Bugaš to the throne. This incited the intervention of the Assyrian monarch Aššur-Uballiṭ, whose daughter Muballiṭat-Šērūa may have been the mother, or possibly consort, of Kara-ḫardaš. The usurper was unceremoniously executed and Kurigalzu was installed as a king in his youth from the royal lineage. His genealogical relationship with the Assyrian king is not known. Despite this, there was a tradition of military conflict between Babylon and Assyria around this time. Perhaps as he matured he came to resent his erstwhile benefactors and the accession of Enlil-nīrāri to the Assyrian throne may have assisted loosening the ties of loyalty. A fragmentary letter lists booty brought into Babylonia by Kurigalzu. A copy of an inscription commemorates the gift of a votive sword to the god Ninurta, for his divine intervention in bringing to justice the perpetrators of a massacre of Nippur citizens, in the courtyard of the e-sag-dingir-e-ne, probably meaning "the House of the Great Lord," which appears to have been the most important temple of Dur-Kurigalzu or perhaps its otherwise unknown Nippur namesake. It records, “a certain somebody mobilized a wicked foe in the mountains, who had no name and held no gods precious, and took troops from Dēr to be his allies, and sent, and had draw blades … and spilled like water the blood of Nippur’s citizens.” In some respects, these events are reminiscent of the Chronicle P passage concerning Kurigalzu’s exploits against Ḫurba-tila, now assigned to his earlier name-sake.
Battle of Sugagu
Two chronicles report a conflict, called the battle of Sugagu, only a day's journey south of Aššur on the Tigris and therefore deep in Assyrian territory, between Kurigalzu II and his Assyrian contemporary resulting in exchange of territory. One proclaims Kurigalzu the victor but confuses the Assyrian adversary with his more famous descendant, while the other declares victory to Enlil-nīrāri suggesting a loss of territory from Assyria to Babylon. The epic texts seem to be biased to their respective authors’ homelands in a rather typical genre for this period and taken together may perhaps suggest an indecisive outcome. A second battle, this time at Kilizi, near Erbil, is recorded on a fragment. A later kudurru of Kaštiliašu IV recalls Kurigalzu’s gift of a large area of land to Uzub-Šiḫu or -Šipak in grateful recognition of his service in the war against Assyria.
The dream of Kurigalzu
A zaqiqu, or incubation omen, is known from this period as the dream of Kurigalzu and the tablet of sins, where a Kassite king tentatively identified with him seeks through a dream to find out why his wife cannot bear a child:
