The Battle of Fère-Champenoise was fought between two Imperial French corps led by Marshals Auguste de Marmont and Édouard Mortier, duc de Trévise and a larger Coalition force composed of cavalry from the Austrian Empire, Kingdom of Prussia, Kingdom of Württemberg, and Russian Empire. Caught by surprise by Field Marshal Karl Philipp, Prince of Schwarzenberg's main Coalition army, the forces under Marmont and Mortier were steadily driven back and finally completely routed by aggressive Allied horsemen and gunners, suffering heavy casualties and the loss of most of their artillery. Two divisions of French National Guards under Michel-Marie Pacthod escorting a nearby convoy were also attacked and wiped out in the Battle of Bannes. The battleground was near the town Fère-Champenoise located 40 kilometres (25 mi) southwest of Châlons-en-Champagne.

Karl Philipp, Fürst zu Schwarzenberg was an Austrian Generalissimo and former Field Marshal. He first entered military service in 1788 and fought against the Turks. During the French Revolutionary War, he fought on the allied side against France and in that period rose through the ranks of the Imperial Army. During the Napoleonic Wars, he fought in the Battle of Wagram (1809), which the Austrians lost decisively against Napoleon. He had to fight for Napoleon in the Battle of Gorodechno (1812) against the Russians and won. During the War of the Sixth Coalition, he was in command of the allied army that decisively defeated Napoleon in the Battle of Leipzig (1813). He participated in the Battle of Paris (1814), which forced Napoleon to abdicate.