Shamshi-Adad IV, inscribed mdšam-ši-dIM, was the king of Assyria, 1054/3–1050 BC, the 91st to be listed on the Assyrian Kinglist.
The king of Babylon was Adad-apla-iddina, who had been installed more than a decade earlier by Shamshi-Adad brother, Ashur-bel-kala.
The extent to which he was instrumental in the succession is uncertain but it seems that Shamshi-Adad may have earlier sought refuge in exile in the south.
[1] The Synchronistic Kinglist[i 3] gives Ea-, presumed to be Ea-mukin-zeri (c. 1008 BC), as his Babylonian contemporary,[2] an unlikely pairing as he was likely to have been concurrent with the latter kings of the 2nd dynasty of Isin during its dying throes.
The political events of his reign are obscure and his fragmentary inscriptions are limited to commemorating renovation work carried out on the Ištar temple at Nineveh and the bīt nāmeru ("gate-tower") at Assur.