https://en.wikipedia.org/wiki/Fall_of_Babylon
The Fall of Babylon denotes the end of the Neo-Babylonian Empire after it was conquered by the Achaemenid Empire in 539 BCE.. Nabonidus (Nabû-na'id, 556–539 BCE), son of the Assyrian priestess Adda-Guppi, came to the throne in 556 BCE, after overthrowing the young king Labashi-Marduk.For long periods he entrusted rule to his son, prince and coregent Belshazzar, …