What is "gueux"

Gueux can mean different things:

• Les Gueux ("the Beggars") and les Gueux de mer ("Sea Beggars"), name taken on during the Eighty Years' War by the Dutch rebels against Spain.
• Claude Gueux, short story by Victor Hugo
• Reims-Gueux - a French racing circuit
• Gueux, a commune of the Marne département, in France