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Battle of Formentera (1529)
Barbarossa galley in France 1543.
Date 1529 Location Formentera Result Algerian victory
Belligerents
Spanish Empire	Regency of Algiers
Commanders and leaders
Rodrigo Portuondo †	Aydin Reis
Strength
8 galleys	Unknown
Casualties and losses
7 galleys captured and remaining soldiers enslaved. 1,000 Muslim galley slaves freed.	Unknown

The Battle of Formentara occurred on 28 October 1529 when an Ottoman fleet under Aydin Reis routed a small Spanish fleet of eight galleys off the island of Formentera near Ibiza.^[1][2]

Habsburg emperor Charles V had sent a small Spanish fleet of eight galleys under the Spanish commander of the Castilla fleet, Rodrigo Portuondo [es], to eliminate Barbary ships from Algiers under Caccia Diavolo which were raiding the coast of Valencia and ferrying Moriscos from Spain to Algeria.^[3]

Portuondo was killed in the battle, seven of his eight galleys were captured, and his soldiers were taken as slaves to the recently conquered city of Algiers,^[2] and 1000 Muslim galley slaves had been liberated.^[4]

• Garnier, Edith L'Alliance Impie Editions du Felin, 2008, Paris ISBN 978-2-86645-678-8 Interview

38°42′N 1°27′E / 38.700°N 1.450°E / 38.700; 1.450