# Battle of Ostrołęka (1831)

URL: https://poland-history.com/timeline/1831-battle-of-ostroleka
Location: Ostrołęka
Categories: battle

Russian forces under Field Marshal Diebitsch inflicted a heavy defeat on the Polish army at Ostrołęka, a turning point in the war. Within the broader Partitioned Poland period: Without a state, Poles preserved their nation through uprisings, emigration, Romantic literature, 'organic work' and modern political movements, while facing Russification and Germanisation. At this point in the timeline (26 May 1831), the governing authority was Nicholas I (King of Poland (Tsar of Russia)). Crowned King of Poland in Warsaw in 1829; declared deposed by the Sejm in 1831, he crushed the November Uprising and revoked Polish autonomy. Battle of Ostrołęka 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
Battle of Ostrołęka mattered because it changed the military or territorial balance and influenced the political choices that followed.

Ruler at the time: [Nicholas I](https://poland-history.com/rulers/nicholas-i)

## Sources
- [Wikipedia — Battle of Ostrołęka (1831)](https://en.wikipedia.org/wiki/Battle_of_Ostro%C5%82%C4%99ka_(1831))
- [Encyclopaedia Britannica topic lookup — Battle of Ostrołęka](https://www.britannica.com/search?query=Battle+of+Ostro%C5%82%C4%99ka)
- [Wikipedia — History of Poland (1795–1918) (period overview)](https://en.wikipedia.org/wiki/History_of_Poland_(1795%E2%80%931918))