CASUALTY RECORD // August 28, 1624
Siege of Breda
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 13,000 estimated
Dutch Republic
10,000
Medium-confidence figure
Spanish Empire
3,000
Medium-confidence figure
Battle context
The Siege of Breda, begun on 28 August 1624, saw a Spanish force of 18,000 under Ambrogio Spinola and Carlos Coloma invest a Dutch garrison of 7,000 commanded by Justin of Nassau, with Maurice of Nassau leading the Dutch Republic's efforts to relieve or contest the siege. The disparity in casualties — 10,000 for the Dutch Republic against 3,000 for the Spanish Empire — indicates a severe Dutch loss in the engagement, consistent with the broader pattern of Spanish military pressure on Dutch positions during this phase of the Eighty Years' War. The presence of two senior commanders on each side reflects the operational weight both powers attached to Breda within the wider conflict over control of the Habsburg Netherlands.
‹ Full battle dossier