CASUALTY RECORD // December 23, 1806
Battle of Czarnowo
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 2,801 estimated
French Empire
1,400
Medium-confidence figure
Russian Empire
1,401
Medium-confidence figure
Battle context
The Battle of Czarnowo secured a French crossing of the Wkra River during the winter operations of the War of the Fourth Coalition. Davout's III Corps forced the passage at the river's mouth and drove eastward to the village of Czarnowo, compelling Ostermann-Tolstoy to withdraw his Russian forces to the east after an all-night engagement. The action extended French operational reach north-northwest of Warsaw along the Narew, maintaining pressure on Russian positions as the campaign continued into early 1807. Casualties on both sides were roughly equal despite the disparity in engaged strength, indicating the difficulty of the night river assault.
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