# Great War with the Teutonic Order begins (1409)

URL: https://poland-history.com/timeline/1409-great-war-with-the-teutonic-order-begins
Location: Samogitia
Categories: battle

A Samogitian uprising supported by Poland and Lithuania led the Teutonic Order to declare war. Within the broader Jagiellonian Age period: The union with Lithuania created one of Europe's largest states. Victory over the Teutonic Order, the rise of noble democracy and a brilliant Renaissance culture marked the Jagiellonian golden age. At this point in the timeline (1409), the governing authority was Władysław II Jagiełło (King of Poland). Grand Duke of Lithuania who became King of Poland, Christianised Lithuania and defeated the Teutonic Order at Grunwald. Great War with the Teutonic Order begins mattered because it changed the military or territorial balance and influenced the political choices that followed. The event is placed here so readers can follow it alongside changes in government, warfare, society, religion and culture across Polish history.

## Why it matters
Great War with the Teutonic Order begins mattered because it changed the military or territorial balance and influenced the political choices that followed.

Ruler at the time: [Władysław II Jagiełło](https://poland-history.com/rulers/wladyslaw-ii-jagiello)

## Sources
- [Wikipedia — Polish–Lithuanian–Teutonic War](https://en.wikipedia.org/wiki/Polish%E2%80%93Lithuanian%E2%80%93Teutonic_War)
- [Encyclopaedia Britannica topic lookup — Great War with the Teutonic Order begins](https://www.britannica.com/search?query=Great+War+with+the+Teutonic+Order+begins)
- [Wikipedia — Jagiellonian dynasty (period overview)](https://en.wikipedia.org/wiki/Jagiellonian_dynasty)