Luis Fermín de Carvajal, 1st Count of la Unión became a general officer in the army of the Kingdom of Spain. In 1794 during the French Revolutionary Wars, he commanded the Spanish Army in a mostly unsuccessful effort to hold back the army of the First French Republic. He died in battle fighting the French.

The War of the Pyrenees, also known as War of Roussillon or War of the Convention, was the Pyrenean front of the First Coalition's war against the First French Republic. It pitted Revolutionary France against the kingdoms of Spain and Portugal from March 1793 to July 1795 during the French Revolutionary Wars.