Painter. Professor. Hard edge painter. Studied Akademie der Kunste in Stuttgart, 1950-54; Co- Founder and key member of Gruppe 11 (other co-founder was George Karl Pfahler). Exhibited in London with New Vision Gallery, 1957; Drian Galleries 1959 and 1963; Galeria la Tartaruga, Rome and in Germany many solo and group exhibitions from the 1950s to present day.