He was one of three Chaldaean tribal leaders to occupy the Babylonian throne during the course of the 8th century and would be looked back as the ancestor figure during future reigns of members of this group.
[3] The legal document[i 5] dated to his ninth year records the sale of a large expanse of grazing land, eqel ša bīt ikkari, "the field of the house of the farmer".
The land apparently bordered property belonging to an Aramean sheikh, or nasīku, evidence of permanent settlement rather than opportunistic raiding by this tribal group.
[i 6] An inscription of Esarhaddon of Assyria (681–669 BC), relates how part of the temple of Ištar in the Eanna at Uruk, the shrine of the goddess Nanaya originally built by Nazi-Maruttaš in the 13th century, had been restored by Erība-Marduk.
[6] The only extant royal inscriptions from his reign are two duck-weights[i 7] endorsed by Erība-Marduk's palace administration, and a part of a solid clay cylinder[i 8] thought to be commemorating the inauguration of cultic idols, their decoration and transport upstream on the river Euphrates to Uruk.