CASUALTY RECORD // March 28, 1809
First Battle of Porto
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
1 sides catalogued · combined 8,000–10,000 estimated
Portugal
8,000–10,000
Medium-confidence figure
Battle context
At Porto in March 1809, Marshal Soult's French force, numbering roughly half the strength of the defending Portuguese under General Parreiras, defeated and routed an army of around 30,000, inflicting estimated casualties of 8,000–10,000. Soult pressed the victory immediately by storming the city itself. The collapse of the defense triggered a mass civilian flight that ended in the Porto Boat Bridge disaster, in which thousands of fleeing citizens drowned. The fall of Porto gave French forces control of one of Portugal's principal cities and represented a serious blow to Portuguese resistance early in the Peninsular War campaign.
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