The Guards of Honour served in the German campaign of 1813 and by 15 September they formed part of the 3rd Imperial Guard Cavalry Division. By this time the 1st Regiment of the Guards had been reduced in strength to 13 officers and 354 men. The regiments fought at the Battle of Hanau on 30 October. Advancing to the battle through a forest in company with the Imperial Guard cavalry they suffered casualties from artillery fire. Alongside the Imperial Guard cavalry they charged a unit of Bavarian cavalry that threatened to overrun the Imperial Guard artillery. The Guards went on to capture an Austro-Bavarian artillery unit.