CASUALTY RECORD // May 26, 1831
Battle of Ostrołęka
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 11,400 estimated
Congress Poland
6,400
Medium-confidence figure
Russian Empire
5,000
Medium-confidence figure
Battle context
Battle of Ostrołęka, November Uprising.
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