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BATTLE // October 8, 1538

Battle of Preveza

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Overview

The Battle of Preveza was a naval engagement that occurred on 28 September 1538 near Preveza in the Ionian Sea in northwest Greece, in the same area as the Battle of Actium in 31 BC. The battle was between an Ottoman fleet, led by Kapudan Pasha Hayreddin Barbarossa, and a Holy League of Venetian and Hispano-Imperial composition, led by Genoese admiral Andrea Doria. It was part of both the Ottoman–Habsburg wars and the Ottoman Venetian War of 1537-1547. It ended with the Holy League defeated by the Ottomans despite its enormous advantage in numbers and tonnage.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Preveza was a decisive Ottoman naval victory over the combined Holy League fleet of Venice and the Habsburg powers in the Ionian Sea off northwest Greece. Despite the Holy League holding a substantial advantage in numbers and tonnage, Hayreddin Barbarossa's Ottoman fleet under Kapudan Pasha defeated the allied force commanded by Genoese admiral Andrea Doria, inflicting some 3,000 casualties on the League. The outcome formed part of the broader Ottoman–Habsburg conflict and the concurrent Ottoman–Venetian War of 1537–1547, reinforcing Ottoman maritime dominance in the eastern Mediterranean. By defeating a coalition that combined Venetian and Hispano-Imperial naval strength, the battle demonstrated that Ottoman sea power could overcome numerically and materially superior European fleets, with lasting consequences for the balance of naval power in the region during the mid-sixteenth century.

Forces & casualties

Troop strength

  • Ottoman Empire3,000
    medium
  • Holy League2,500–2,594
    medium

Ottoman Empire fielded a 1.2 : 1 numerical advantage

Casualties

  • Holy League3,000
    medium118% loss rate

Commanders (8)

Last verified July 2026
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