[a] I Royal Bavarian Reserve Corps was formed on the outbreak of the war in August 1914[1] as part of the mobilisation of the Army.

It was initially commanded by General der Infanterie Karl von Fasbender, brought out of retirement.

[2] It was still in existence at the end of the war[3] in the 17th Army, Heeresgruppe Kronprinz Rupprecht on the Western Front.

In general, Reserve Corps and Reserve Divisions were weaker than their active counterparts In summary, I Royal Bavarian Reserve Corps mobilised with 25 infantry battalions, 5 machine gun companies (30 machine guns), 6 cavalry squadrons, 12 field artillery batteries (72 guns) and 3 pioneer companies.

[10] On mobilisation, I Royal Bavarian Reserve Corps was assigned to the predominantly Bavarian 6th Army forming part of the left wing of the forces for the Schlieffen Plan offensive in August 1914.