Rupprecht, Crown Prince of Bavaria, Duke of Bavaria, Franconia and in Swabia, Count Palatine by the Rhine, was the last heir apparent to the Bavarian throne. During the first half of World War I, he commanded the 6th Army on the Western Front. From August 1916, he commanded Army Group Rupprecht of Bavaria, which occupied the sector of the front opposite the British Expeditionary Force.

The Kingdom of Bavaria was a German state that succeeded the former Electorate of Bavaria in 1806 and continued to exist until 1918. With the unification of Germany into the German Empire in 1871, the kingdom became a federated state of the new empire and was second in size, power, and wealth only to the leading state, the Kingdom of Prussia.