Belshazzar in Wikipedia

(or Balthazar; Akkadian Bel-sarra-usur) was a prince of Babylon, the son of Nabonidus, the last king of Babylon according to the Book of Daniel. Like his father, it is believed by many scholars that he was an Assyrian. In the Book of Daniel (chapters 5 and 8) of the Jewish Tanakh or Christian Old Testament, Belshazzar is the King of Babylon before the advent of the Medes and Persians...

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