Daniel 5:30

Chaldeans] here used in the national sense, as equivalent to 'Babylonians.'

Was Belshazzar.. slain] The traditions about the capture of Babylon by Cyrus, which classical historians have preserved, are now known from the inscriptions of Cyrus himself to be incorrect. The army of Cyrus occupied Babylon without fighting, and Nabuna'id was captured. Cyrus himself afterwards entered the city in peace. A little later, however, there was a night assault made by Gobryas, the governor under Cyrus, in which 'the king's son' was slain.