Battle of Olszynka Grochowska

Battle of Olszynka Grochowska
	Part of the November Uprising
	; Olszynka Grochowska, an 1886 painting by Wojciech Kossak
Date	25 February 1831
Location	Olszynka Grochowska east of Warsaw, Poland
Result	See § Aftermath
Belligerents
Kingdom of Poland	Russian Empire
Commanders and leaders
Józef Chłopicki; Jan Zygmunt Skrzynecki; Jan Krukowiecki	Hans Karl von Diebitsch; Grigory Vladimirovich Rosen
Strength
36,000–40,000 men, 115 cannon	60,000 men, 178 cannon
Casualties and losses
Estimates; • Polish: 6,800; • Russian: 12,000; • Other: 7,000–9,500 casualties;	Estimates; • Polish: 9,400; • Russian: 9,500; • Other: at least 9,500 casualties; up to 10,500;

The Battle of Olszynka Grochowska, or the battle of Grochów, was fought on 25 February 1831 in the woods near Grochów, on the eastern outskirts of Warsaw. The Polish army, commanded by Józef Chłopicki, succeeded in preventing its Russian counterpart, under Hans Karl von Diebitsch, from crushing the uprising. However, the battle has also been described as an inconclusive bloodbath.