The city of Hamburg was one of the most powerful fortresses east of the Rhine. After being freed from Napoleonic rule by advancing Cossacks and other following Coalition troops it was once more occupied by Marshal Davout's French XIII Corps on 28 May 1813, at the height of the German Campaign during the War of the Sixth Coalition from French rule and occupation.
The city of Hamburg was a significant fortress east of the Rhine River. After being freed from Napoleonic control by Cossacks and other allied forces, it was recaptured by Marshal Davout's French XIII Corps on May 28, 1813, during the height of the German Campaign in the War of the Sixth Coalition, which aimed to liberate Germany from French rule.