Commentaire sur Daniel 5:1

King Belshazzar He was his son, and he reigned after Evil-merodach, who reigned instead of Nebuchadnezzar, and (he) too was the son of Nebuchadnezzar.

made a great feast We find in Josephon (Book 1, ch. 3) that he waged war by day with Darius the Mede and Cyrus and was victorious in the battle. So in the evening he made a feast, as Isaiah had prophesied about him: (21: 5) “Setting the table, setting up the lamp, eating, drinking. ‘Arise, princes, etc.’” For in the midst of the feast the enemies returned, waged war on the city and captured it.

as much wine as the thousand The equivalent of one thousand men [was the amount] he was drinking [in] wine.