The tactical draw at Eylau on February 7 and 8 had forced the Russians to withdraw further north.

After the battle, Napoleon had sent General Bertrand to the King of Prussia to offer a separate peace, which would see French forces withdraw from Prussia and her borders completely restored.

Prussia, wishing to continue its alliance with Russia, had quickly rejected this offer.

On May 24, 1807, the six-week Siege of Danzig ends when Prussian General Friedrich Adolf, Count von Kalckreuth, capitulates to French Marshal François Joseph Lefebvre.

Napoleon now orders the siege of the nearby Weichselmünde fort, but Kamensky had fled with his troops, and the garrison capitulates shortly afterwards.

The battle has cost the French six thousand killed and wounded, while the Prussians have lost three thousand killed, wounded and sick, and the Russians fifteen hundred.

In recompense for Lefebvre's services, Napoléon will grante him the title “Duc de Dantzig” in a letter to the Senate dated May 28.