Karl Rudolf Gerd von Rundstedt (12 December 1875 – 24 February 1953) was a German field marshal in the Heer (Army) of Nazi Germany during World War II. Born into a Prussian family with a long military tradition, Rundstedt entered the Prussian Army in 1892. During World War I, he served mainly as a staff officer. In the inter-war years, he continued his military career, reaching the rank of Colonel General (Generaloberst) before retiring in 1938.