CASUALTY RECORD // August 30, 1757
Battle of Gross-Jägersdorf
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 10,000 estimated
Russia
5,400
Medium-confidence figure
Prussia
4,600
Medium-confidence figure
Battle context
The Battle of Gross-Jägersdorf on 30 August 1757 was the first engagement in which Russia entered the Seven Years' War, marking the opening of an eastern front that would impose significant additional pressure on Frederick the Great's Prussia. A Russian force of approximately 54,800 under Field Marshal Stepan Apraksin defeated a Prussian force of between 24,700 and 27,700 under Field Marshal Hans von Lehwaldt, with Russia sustaining around 5,400 casualties against Prussian losses of approximately 4,600. The engagement demonstrated that Prussia, already committed on multiple fronts against Austria, France, and their allies, now faced a capable adversary to its east. As the first Russian operational action of the war, Gross-Jägersdorf established the viability of Russian arms in the wider coalition against Prussia and signaled the strategic weight that Russia would carry in the anti-Prussian alliance for the remainder of the conflict.
‹ Full battle dossier