Art Brokerage: Jean DuBuffet French Artist: 1901-1985. At his death in 1985, at the age of 84, Jean DuBuffet was acknowledged to be one of the most important artists of the post-war generation. A wine merchant turned polemicist turned art rebel, the 43-year-old DuBuffet had his first one-man show in Paris in 1944, with the Germans barely departed. Violently anti-tradition at a time when many of the French longed for a return to normalcy, DuBuffet antagonized the art establishment with his dynamic style and his articulate arguments justifying his new way of thinking. Listings wanted by Art Brokerage.