Polish–Teutonic War (1519–1521)
| Polish–Teutonic War of 1519–1521 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| |||||||||
| Belligerents | |||||||||
| Teutonic Knights | Kingdom of Poland | ||||||||
| Commanders and leaders | |||||||||
| Albert of Hohenzollern |
Sigismund I the Old Mikołaj Firlej Nicolaus Copernicus | ||||||||
| Strength | |||||||||
| Tens of thousands, but likely under 50,000 | Tens of thousands, but likely under 50,000 | ||||||||
The Polish–Teutonic War of 1519–1521 (German: Reiterkrieg, lit. 'Rider's War', Polish: Wojna pruska, lit. 'Prussian War') was fought between the Kingdom of Poland and the Teutonic Knights, ending with the Compromise of Thorn in April 1521. Four years later, under the Treaty of Kraków, part of the Catholic Monastic State of the Teutonic Order became secularized as the Duchy of Prussia. The reigning Grand Master Albert of Hohenzollern-Brandenburg-Ansbach became the first Duke of Prussia by paying the Prussian Homage as vassal to his uncle, Polish king and grand Duke of Lithuania, Sigismund I the Old (1467–1548, reigned 1506–1548).