War of Roussillon, also called War of the Pyrenees or War of the Convention, (1793-1795). Conflict between the Spain of Charles IV and the First French Republic. Battle of Mas Deu (May 19, 1793). General Antonio Ricardos' troops defeated General Dagobert's French forces in their advance towards Perpignan. Engraving. Historia del Levantamiento, guerra y revolucion de Espana by the Conde de Toreno. Madrid, 1851. (Photo by: Prisma/Universal Images Group via Getty Images)