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Imi Knoebel (born Klaus Wolf Knoebel) is a German artist. Knoebel is known for his minimalist, abstract painting and sculpture. The "Messerschnitt" or "knife cuts," are a recurring technique he employs, along with his regular use of the primary colors, red, yellow and blue. Knoebel lives and works in Düsseldorf.
Franz Radziwill was a German artist of the twentieth century. He is known as a landscape painter, graphic artist and printmaker associated with the artistic movement of "new materiality".
Franz Radziwill created paintings that are characterized by careful elaboration and the use of glaze techniques borrowed from the Old Masters. He used elements of industrial buildings and modern technology, including ships and airplanes, in his landscapes. The results of his work can be categorized as magical realism.
In 1933 Radziwill became professor of painting at the Düsseldorf Academy of Art, but in 1935 the Nazis stripped him of this position, declaring his work degenerate art.