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BATTLE // January 1, 1656

Battle of Warsaw

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Source · Wikipedia

Significance

The Battle of Warsaw, fought on 1 January 1656 during the Second Northern War, pitted a Swedish and allied force of 9,500 under Charles X Gustav and Frederick William against a Polish–Lithuanian Commonwealth army of 36,000–39,000 under John II Casimir. Swedish and allied casualties stood at 1,300 against Commonwealth losses of approximately 2,000. The engagement reflects the broader pattern of the Second Northern War, in which Swedish forces under Charles X Gustav operated across Polish–Lithuanian territory against numerically superior Commonwealth armies. The presence of Frederick William alongside Charles X Gustav indicates the involvement of Brandenburg as a Swedish ally at this stage of the conflict.

Forces & casualties

Troop strength

  • Swedish Empire9,500
    medium
  • Polish–Lithuanian Commonwealth36,000–39,000
    medium

Polish–Lithuanian Commonwealth fielded a 3.9 : 1 numerical advantage

Casualties

  • Swedish Empire1,300
    medium14% loss rate
  • Polish–Lithuanian Commonwealth2,000
    medium5% loss rate
Order of battle →Casualties in detail →

Commanders (3)

Polish–Lithuanian Commonwealth

Swedish Empire

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Related

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Last verified July 2026
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