Polish–Swedish War (1626–1629)

Polish–Swedish War (1626–1629)
Part of Polish–Swedish War (1600–1629), Polish-Swedish Wars

Battle of Trzciana by Józef Brandt
Date1626–1629
Location
Result Truce of Altmark
Territorial
changes
Polish–Lithuanian Commonwealth acknowledges Swedish occupation of Livonia
Belligerents
Swedish Empire Polish–Lithuanian Commonwealth
Commanders and leaders
Gustavus Adolphus
Axel Oxenstierna
Herman Wrangel
Sigismund
Koniecpolski
Jan Sapieha
Stanisław Potocki
von Arnim
Strength
40,000 Unknown
Casualties and losses
30,000 dead Unknown

The Polish–Swedish War (1626–1629) was the last in a series fought by Sweden and the Polish–Lithuanian Commonwealth between 1600 and 1629. In July 1626, Gustavus Adolphus landed in Polish Prussia in an attempt to capture Gdańsk, but neither side could win a decisive advantage and the war became a stalemate.

Under the September 1629 Truce of Altmark, the Commonwealth accepted the loss of what became Swedish Livonia, including the strategic Baltic Sea port of Riga. Sweden also retained its gains in Prussia, although these were returned in the 1635 Treaty of Stuhmsdorf. The end of hostilities permitted Swedish intervention in the Thirty Years' War in June 1630.