Eylau (Campaign of Friedland).
Fought February 8, 1807, between 90,000 French under Napoleon, and 80,000 Russians under Bennigsen. Napoleon attacked at daybreak, all along the line, but could at first make no impression on the Russian infantry. Later in the day Davoust all but succeeded in turning the Russian left, but the opportune arrival of a Prussian corps under l'Estocq enabled the Russians to repulse him, and after a sanguinary engagement, which lasted till ten p.m., both armies retained their original positions. On the following day the Russians retired unmolested. The French lost about 30,000; the Russians about 20,000 killed and wounded.