Battle of Tczew

Battle of Dirschau
Part of the Polish–Swedish War (1626–29)
Date 7–8 August 1627 (Swedish calendar) 17–18 August 1627 (N.S.) Location Tczew, Royal Prussia (Crown of the Kingdom of Poland) 54°05′29.99″N 18°46′38.31″E / 54.0916639°N 18.7773083°E / 54.0916639; 18.7773083 Result Inconclusive: Swedish tactical victory Polish–Lithuanian strategic victory
Belligerents
Polish–Lithuanian Commonwealth  Holy Roman Empire	Swedish Empire
Commanders and leaders
Stanisław Koniecpolski, Field Crown Hetman of Poland	Gustavus Adolphus of Sweden
Strength
3,300 (infantry) 4,500 (cavalry) Total: 7,800	6,000 (infantry) 4,100 (cavalry) Total: 10,100
Casualties and losses
likely over 300	around 100

The Battle of Dirschau (also known as Battle of Tczew) took place in the summer of 1627 (17–18 August) and was one of the battles of the Polish–Swedish War (1626–29). The Polish forces led by Crown Field Hetman Stanisław Koniecpolski met with troops commanded by Swedish King Gustavus Adolphus of Sweden. Gustavus Adolphus was wounded in the battle, which ended inconclusively. Fighting in Prussia ended in a stalemate for that year, and would not resume until 1628.

In the summer of 1626 the Swedes invaded Pomerania and the Duchy of Prussia, taking Pillau (Baltiysk, Piława). The fighting spread, marked by a number of Swedish successes that year against the forces of the Polish king Sigismund III Vasa. In October, the Polish forces in the region were reinforced by the army of Crown Field Hetman Stanisław Koniecpolski, relocated from the south-eastern border of the Polish–Lithuanian Commonwealth. Koniecpolski was able to slow down the Swedes and retake some territory, notably Puck (March), and defeated the Swedes at the Battle of Hammerstein (also known as Battle of Czarne) in April. In May 1627 Swedish King Gustavus Adolphus of Sweden reinforced his units, attacking the Polish-Lithuanian Commonwealth in Pomerania. Polish forces, commanded by hetman Koniecpolski, numbered under 15,000. In the summer of 1627 Koniecpolski decided to advance to the major port of the Pomerania, Danzig (Gdańsk).

Both Koniecpolski and Gustav II Adolf desired a major battle. Koniecpolski needed to reduce the Swedes' strength, as their current numerical superiority made it difficult for his army to contain them; Gustav II Adolf meanwhile heard rumors of possible reinforcements for Koniecpolski arriving, and wanted to defeat him before his numerical superiority withered.

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