The siege of Collioure (6 – 29 May 1794) saw a Republican French army led by Jacques François Dugommier invest a French port held by a Spanish garrison commanded by Eugenio Navarro. The actual siege work was carried out by Pierre François Sauret's reinforced division. After the three-and-a-half-week War of the Pyrenees siege the Spanish fleet sent to evacuate the garrison was blown off station by a storm. Navarro surrendered the town on the promise to exchange the paroled garrison with an equal number of French prisoners. After the defenders were released, the Spanish army commander Luis Firmín de Carvajal, Conde de la Unión refused to authorize the agreement or return any French captives. The infuriated French government afterward passed a decree ordering death to all Spanish prisoners an