Radical artist Heinz Mack turns 90 He co-founded an artist group in the 50s to mark a new beginning after the Nazi era. His influence remains today. Heinz Mack turns 90 on March 8, 2021 The sculptor and painter Heinz Mack had a decisive influence on Germany's art history during the post-war period. Born in the village of Lollar in the German region of Hessen on March 8, 1931, Mack moved to Düsseldorf in the early 1950s, at a time when the city still bore the scars of the Second World War. An early starter, Mack submitted his portfolio to the Düsseldorf Art Academy before graduating from high school and was accepted.