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BATTLE // August 31, 1813

Battle of San Marcial

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Overview

The Battle of San Marcial took place on 31 August 1813 near Irún, close to the Franco-Spanish border, as part of the Peninsular War. The Spanish Army of Galicia under Manuel Freire de Andrade repulsed a French attack led by Jean-de-Dieu Soult. The battle was named after the heights of San Marcial which were held by the Spanish.

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

Significance

The Battle of San Marcial, fought near Irún close to the Franco-Spanish border on 31 August 1813, saw the Spanish Army of Galicia under Manuel Freire de Andrade and Gabriel de Mendizábal repulse a French assault commanded by Jean-de-Dieu Soult. The Spanish force of 16,000 held against 18,000 French troops, inflicting roughly 4,000 French casualties while sustaining approximately 2,500 of their own. Coming in the latter stages of the Peninsular War, the successful defense demonstrated the Spanish army's growing capacity to contest French forces independently, without relying on British intervention. Control of the heights of San Marcial reinforced the Allied position along the Franco-Spanish frontier and added pressure on Soult's forces as the campaign moved toward the Pyrenees and ultimately into French territory.

Tactics

The Spanish held the heights of San Marcial and repulsed a French attack. Beyond the defensive positioning on those heights, the overview does not describe the specific maneuvers, dispositions, or tactical sequence of the engagement.

Forces & casualties

Troop strength

  • Spain16,000
    medium
  • France18,000
    medium

France fielded a 1.1 : 1 numerical advantage

Casualties

  • Spain2,500
    medium16% loss rate
  • France4,000
    medium22% loss rate

Commanders (3)

France

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6 sibling battles · 3 factions

Last verified June 2026
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