siege, notable, early modern

Siege of Ostend

Name: Siege of Ostend
Start: 1604-09-20
Location: Ostend, Belgium

Siege of Ostend was a siege conducted on 20 September 1604 at Ostend, in what is now Belgium; it lasted 2 days. It was part of the Eighty Years' War, 1599–1609, which ran from 1599 to 1609. The recorded result: Spanish victory. Recorded strength: 2,500–8,000 (peak); Total: ~50,000 (by rotation)Note B against 9,000–20,000 (peak); Total: ~80,000 (by rotation).

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Fought20 September 1604lasted 2 days

WhereOstend, Belgium51.217N, 2.900E

OutcomeSpanish victory

BelligerentsDutch Republic; EnglandagainstSpanish Empire

Part ofEighty Years' War, 1599–16091599 to 1609

Record

Date	20 September 1604 to 22 September 1604
Place	Ostend, Belgium 51.217N, 2.900E
Kind	Siege, early modern
Territorial change	Ostend annexed by Spanish Netherlands
Strength	2,500–8,000 (peak); Total: ~50,000 (by rotation)Note B	9,000–20,000 (peak); Total: ~80,000 (by rotation)
Casualties and losses	30,000 – 45,000 killed, wounded or succumbed to disease; 3,000 surrendered	60,000 – 70,000 killed, wounded or succumbed to disease
Commanders	Charles van der Noot Francis Vere Frederick van Dorp Peter van Gieselles Charles Fairfax (soldier) Daniel d´Hertaing	Albert VII of Austria Ambrosio Spinola, marqués de los Balbases Luis de Velasco y Velasco, 2nd Count of Salazar Charles Bonaventure de Longueval, 2nd Count of Bucquoy Frederik van den Bergh

The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Siege of Ostend 1745, 2.9 km NE
Battle of Nieuwpoort 1600, 13 km SW
Battle of the Yser 1914, 14 km SW
Siege of Nieuwpoort 1793, 15 km SW
Battle of Wijnendale 1708, 18 km SE

Elsewhere in 1604

Siege of Ostend is one of 1,470 engagements of the 17th century in the atlas and one of 243 in present-day Belgium.

Sources

Identity, coordinates, dates and the war from Wikidata Q646895, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Siege of Ostend, revision 1374175777, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.