What is "marduk-balassu-iqbi"

Marduk-balāssu-iqbi, inscribed AMAR.UTU-TI-su-iq-bi or SID-TI-zu-DUG, meaning “Marduk has promised his life,” ca. 819 – 813 BC, was the 8th king of the Dynasty of E of Babylon; he was the successor of his father Marduk-zākir-šumi I, and was the 4th and final generation of Nabû-šuma-ukin I's family to reign. He was contemporary with his father’s former ally, Šamši-Adad V of Assyria, who may have been his brother-in-law, married to who was possibly his sister Šammu-ramat, the legendary Semiramis, and who was to become his nemesis.