Career
Although he was a native of the Prussian Province of Hesse-Nassau, Fasbender joined the Bavarian Army in 1872. He rose to divisional command in the pre-War period, before retiring in 1912. He also served as Chief of Bavarian General Staff in 1907 and 1908.
Recalled from retirement on the outbreak of the War, he took command of the newly formed I Royal Bavarian Reserve Corps as part of the mostly Bavarian 6th Army.
He commanded this Corps for almost the entire duration of the war. In the final days of the war he was appointed to command the 19th Army.
Karl von Fasbender died on 13 May 1933 in Munich, Germany.