Šamaš-šuma-ukin, a prominent figure in the Neo-Assyrian era, was born into the Assyrian royal family around six hundred seventy BC. As the son of King Esarhaddon and the elder brother of Ashurbanipal, he was designated as king of Babylon, serving as a vassal to the Neo-Assyrian Empire from six hundred sixty-eight BC until his death in six hundred forty-eight BC. His appointment to the Babylonian throne was likely a strategic move by his father to mitigate potential rivalry between the brothers.
Despite being the elder son, Šamaš-šuma-ukin was not chosen as heir to Assyria, a decision that remains shrouded in mystery. Esarhaddon required him to pledge allegiance to Ashurbanipal, the clear primary heir, while also granting him the title of