CASUALTY RECORD // March 5, 1811
Battle of Barrosa
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 5,800 estimated
United Kingdom
2,800
Medium-confidence figure
France
3,000
Medium-confidence figure
Battle context
Barrosa arose from an Anglo-Iberian attempt to lift the French siege of Cádiz, one of the strategic anchors of British operations in the Peninsular War. The broader maneuver failed in its objective — the siege of Cádiz was not broken — yet the engagement itself produced a notable British tactical success. A single British division engaged and defeated two French divisions, inflicting roughly 3,000 casualties against a force of 10,000, while sustaining approximately 2,800 of its own. The capture of a French regimental eagle stood as a tangible emblem of battlefield dominance even within an operationally inconclusive effort. The battle illustrated the persistent tension between British and Spanish command, as the combined Anglo-Iberian force of 12,000 was unable to translate a local victory into the larger relief of Cádiz, underscoring how coalition coordination problems repeatedly constrained Allied effectiveness during the Peninsular campaign.
‹ Full battle dossierSources (15)
Academic Journal
Brassey's Almanac: The Peninsular War; The Complete Companion to the Iberian Campaigns, 1807–14
Academic Journal
The Peninsular War
Academic Journal
The Peninsular War 1807–1814: A Concise Military History
Academic Journal
The Spanish Ulcer: A History of the Peninsular War
Academic Journal
Trophies Taken by the British from the Napoleonic Army during the War of Spanish Independence (Peninsular War) 1808–1814
→ Open sourceAcademic Journal
Wellington in the Peninsula
Academic Journal