CASUALTY RECORD // November 8, 1936
Siege of Madrid
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 10,000 estimated
Spanish Republic
5,000
Medium-confidence figure
Nationalist Spain
5,000
Medium-confidence figure
Battle context
The Siege of Madrid, lasting from October 1936 to March 1939, was one of the defining campaigns of the Spanish Civil War. The Republican capital held out for over two and a half years against Nationalist forces under Francisco Franco, making it a prolonged test of each side's ability to sustain operations in and around a major urban center. The most intense phase came in November 1936, when the Nationalists made their most determined attempt to seize the city. Although Madrid ultimately fell to Nationalist armies on 28 March 1939, its prolonged resistance shaped the overall trajectory of the war, demonstrating that the Republic could mount organized urban defense and compelling Franco to redirect resources and attention to other fronts before the capital could be reduced. The city's eventual fall effectively marked the end of the Spanish Civil War, confirming Nationalist control over the country.
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