Johann Nepomuk von Nostitz-Rieneck commanded a cavalry division in the army of the Austrian Empire during the Napoleonic Wars.

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.