Prince of Arches and Charleville is a noble title associated with Charleville-Mézières in France and now held by the Duke of Ursel in Belgium.
[1] The title originates with Charles Gonzaga (Gonzagues), Duke of Mantua, who was also Duke of Rethel, a title which included the lordship of Arches, named after a small hamlet.
In 1608 Charles elevated this lordship to the sovereign Principality of Arches with himself as first Prince and his new town of Charleville (now Charleville-Mézières) as its capital.
The title was inherited by the Duke of Ursel of the Belgian nobility, although the Kingdom of Belgium does not recognise it.
[3] After the death of her aunt in 1723 Eleonore Christina zu Salm inherited the principaute.