Belshazzar in the Bible Encyclopedia - ISBE

bel-shaz'-ar (belsha'tstsar; Baltasar, Babylonian Bel-shar- usur): According to Dan 5:30, he was the Chaldean king under whom Babylon was taken by Darius the Mede. The Babylonian monuments speak a number of times of a Bel-shar-usur who was the "firstborn son, the offspring of the heart of" Nabunaid, the last king of the Babylonian empire, that had been founded by Nabopolassar, the father of Nebuchadnezzar, at the time of the death of Ashurbanipal, king of Assyria, in 626 BC. There is no doubt that this Belshazzar is the same as the Belshazzar of Dnl. It is not necessary to suppose that Belshazzar was at any time king of the Babylonian empire in the sense that Nebuchadnezzar and Nabunaid were. It is probable, as M. Pognon argues, that a son of Nabunaid, called Nabunaid after his father, was king of Babylon, or Babylonian king, in Harran (Haran), while his father was overlord in Babylon. This second Nabunaid is called "the son of the offspring of the heart" of Nabunaid his father. It is possible that this second Nabundid was the king who was killed by Cyrus, when he crossed the Tigris above Arbela in the 9th year of Nabunaid his father, and put to death the king of the country (see the Nabunaid-Cyrus Chronicle col. ii, 17); since according to the Eshki-Harran inscription, Nabunaid the Second died in the 9th year of Nabunaid the First...