Who was Belshazzar?

Bel protect the king!, the last of the kings of Babylon (Dan. 5:1). He was the son of Nabonidus by Nitocris, who was the daughter of Nebuchadnezzar and the widow of Nergal-sharezer.

Belshazzar first appears in Daniel 5:1. In this repository’s biblical text, this figure is associated with 8 verse mentions across 1 book, most notably Daniel.