(¤ 28.06.1874, † 1940) Born in Vienna, Leo Franz Caspar Zumbusch, Ritter von Zumbusch from 1888, began his medical studies in Vienna in 1893. Zumbusch received his dermatological training under Moriz Kaposi in Vienna. Continued his training under Gustav Riehl, Moriz Kaposi's successor. 1906 Habilitation.
From November 1906, following the departure of Karl Kreibich, he was temporary head of the dermatology clinic at the University of Graz for one year. Subsequently (1909) he became primary physician at the Rudolf Foundation Hospital in Vienna. 1912 Appointment as associate professor in Vienna.
1913 Appointment as head of the dermatology polyclinic and "Extraordinarius" for dermatology at Munich University. 1915 As successor to Karl Posselt, head of the dermatology clinic. 1929 Inauguration of the new hospital building, the first high-rise hospital building in Germany at the time, between Frauenlobstraße, Winkelstraße, Waltherstraße and Thalkirchener Straße with over five hundred beds.
1932 von Zumbusch was elected Rector of the Ludwig Maximilian University. 1935 Forced demerit for political reasons (political unreliability!). He died ostracized and lonely in Rimsting am Chiemsee (Upper Bavaria) in 1940. In dermatology today, the name Zumbusch remains associated with pustular psoriasis generalisata.