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BATTLE // February 10, 1578

Battle of Gembloux

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Source · Wikipedia

Significance

The Battle of Gembloux, fought on 10 February 1578 during the Eighty Years' War, resulted in severe casualties for the States-General army, which lost approximately 6,000 of its roughly 20,000-strong force. The Spanish force under John of Austria and Alexander Farnese, numbering between 17,000 and 20,000, engaged a States-General army that included commanders Antoine de Goignies, the Count of Boussu, William de La Marck, and Martin Schenck, among others. The scale of States-General losses relative to total force strength indicates a decisive Spanish tactical success. Gembloux occurred within the broader context of the Eighty Years' War, during a period when Spanish authority in the Low Countries was being contested by the States-General following the Pacification of Ghent. A defeat of this magnitude would have materially weakened the States-General's military position and bolstered Spanish efforts, under John of Austria and the future Duke of Parma Alexander Farnese, to reassert control over the rebellious provinces.

Forces & casualties

Troop strength

  • States-General20,000
    medium
  • Spain17,000–20,000
    medium

Both sides were near-evenly matched in numbers

Casualties

  • States-General6,000
    medium30% loss rate

Commanders (14)

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Last verified July 2026
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