Decline and End

During the eighth and seventh centuries BC, Ammon became a tributary kingdom of the Assyrian Empire. Its rulers retained local authority while acknowledging Assyrian power.

Babylonian expansion in the sixth century BC brought further political changes. Ammon remained involved in regional affairs during the period surrounding the destruction of Jerusalem.

The precise date and circumstances of the monarchy's disappearance are uncertain. Archaeological evidence indicates that settlement and aspects of Ammonite culture continued beyond the end of independent kingship.

During the Persian and Hellenistic periods, the region became part of larger political systems. Rabbath-Ammon eventually became known as Philadelphia under Hellenistic rule.

The ancient capital continued to be inhabited and developed into the modern city of Amman.