Romanian painter and printmaker. Born to Jewish parents and studied at the Berlin Academy from 1892. Early works influenced by impressionism and neo-impressionism before finding his own modernist style. Known for exhibiting with Die Brucke and Der Blaue Reiter, two leading German Expressionist groups. Co-founded the Neue Sezession in 1910, artists rejected by the Berliner Sezession. Moved to Ascona, Switzerland with his family during WWI and exhibited his works alongside Arp and Dada in the Cabaret Voltaire in Zurich. Works after 1910 included anti-war themed woodcuts. After WWI, due to Jewish background was prevented from exhibiting in Germany and so moved to Palma, Majorca before moving to London where he set up another school with daughter, Marianne.