belshazzar was the next king of Babylon.
"Child's Story of the Bible"
Mary A. Lathbury
The king clothed Daniel in scarlet, and gave him a chain of gold, and proclaimed him third ruler in the kingdom, but the same night belshazzar was slain, and Darius the Medean took the kingdom.
"Child's Story of the Bible"
Mary A. Lathbury
The few violations of this principle were frowned upon with an indignity that gave the recusants the belshazzar trembles.
"Sages and Heroes of the American Revolution"
L. Carroll Judson