Augereau's corps was thrown into great confusion with heavy losses, gives Augereau's official tally of 929 killed and 4,271 wounded. One regiment, the 14th Ligne, was unable to retreat and fought to the last man, refusing to surrender; its eagle was carried off by Capt. Marbot. Its position would be marked by a square of corpses. Bennigsen took full advantage, falling on Saint-Hilaire's division with more cavalry and bringing up his reserve infantry to attack the devastated French center. Augereau and 3,000–4,000 survivors fell back on Eylau, where they were attacked by about 5,000 Russian infantry. At one point Napoléon himself, using the church tower as a command post, was nearly captured but members of his personal staff held the Russians off for just long enough to allow some battalions of the Guard to come up. Counterattacked by the Guard's bayonet charge and Bruyère's cavalry in their rear, the attacking Russian column was nearly destroyed. For four hours the French center was in great disorder, virtually defenseless and in imminent danger.