Franz Ritter von Epp was a German general and politician who started his military career in the Bavarian Army. Successful wartime military service earned him a knighthood in 1916. After the end of World War I and the dissolution of the German Empire, Epp was a commanding officer in the Freikorps and the Reichswehr. His unit, the Freikorps Epp, was responsible for numerous massacres during the crushing of the Bavarian Soviet Republic. He was a member of Bavarian People's Party, before joining the Nazi Party in 1928, when he was elected as a member of the German parliament or Reichstag, a position he held until the fall of Nazi Germany. He was the Reichskommissar, later Reichsstatthalter, for Bavaria, and a Reichsleiter of the Nazi Party. During the Nazi era, Epp, who'd participated in the Herero and Namaqua genocide as a young man, shared responsibility for the liquidation of virtually all Bavarian Jews and Romas as the governor of Bavaria.

Freikorps were irregular German and other European military volunteer units, or paramilitary, that existed from the 18th to the early 20th centuries. They effectively fought as mercenaries or private military companies, regardless of their own nationality. In German-speaking countries, the first so-called Freikorps were formed in the 18th century from native volunteers, enemy renegades, and deserters. These sometimes exotically equipped units served as infantry and cavalry ; sometimes in just company strength and sometimes in formations of up to several thousand strong. There were also various mixed formations or legions. The Prussian von Kleist Freikorps included infantry, jäger, dragoons and hussars. The French Volontaires de Saxe combined uhlans and dragoons.