Chronicle P, known as Chronicle 22 in Grayson’s Assyrian and Babylonian Chronicles and Mesopotamian Chronicle 45: "Chronicle of the Kassite Kings" in Glassner's Mesopotamian Chronicles is named for T. G. Pinches, the first editor of the text. It is a chronicle of the second half of the second millennium BC or the Kassite period, written by a first millennium BC Babylonian scribe.

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 king Aššur-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.