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BATTLE // June 25, 1629

Battle of Trzciana

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Overview

The Battle of Trzciana took place on 25 June 1629 and was one of the battles of the Polish-Swedish War (1626–1629) or Second Swedish-Polish War. The Polish forces, including the winged hussars, were led by Crown Field Hetman Stanisław Koniecpolski and imperial troops under Hans Georg von Arnim-Boitzenburg, sent by Emperor Ferdinand II to aid Sigismund III, met with troops commanded by Swedish King Gustav II Adolf, who supported the Protestant Lutherans of Germany and northern Europe. Gustav Adolf was almost killed or captured twice. Fighting in Prussia continued after the battle into July and August and ended with stalemate and finally a truce accepted by Sigismund III.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Trzciana on 25 June 1629 was fought during the Polish–Swedish War of 1626–1629, pitting a combined Polish–Lithuanian Commonwealth and imperial force against a Swedish army more than three times its size. The Commonwealth forces, including the winged hussars under Crown Field Hetman Stanisław Koniecpolski, were reinforced by imperial troops dispatched by Emperor Ferdinand II under Hans Georg von Arnim-Boitzenburg — reflecting the war's entanglement with the wider Thirty Years' War, in which Gustavus Adolphus supported the Protestant cause in Germany and northern Europe. Swedish casualties of roughly 1,500 against a Commonwealth force of only around 1,300 indicate a sharp reverse for the larger Swedish army, and Gustavus Adolphus himself is reported to have narrowly escaped death or capture on two occasions. Despite this outcome, the battle did not prove strategically decisive: fighting in Prussia continued through July and August before ending in stalemate, and Sigismund III ultimately accepted a truce. Trzciana thus demonstrated the battlefield effectiveness of the Commonwealth's forces against a numerically superior enemy while failing to produce a conclusive shift in the war's outcome.

Forces & casualties

Troop strength

  • Polish–Lithuanian Commonwealth1,300
    medium
  • Swedish Empire4,000–4,500
    medium

Swedish Empire fielded a 3.3 : 1 numerical advantage

Casualties

  • Swedish Empire1,500
    medium35% loss rate

Commanders (3)

Polish–Lithuanian Commonwealth

Swedish Empire

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Last verified July 2026
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