1894 trains as a decorative painter in Frankfurt am Main. 1894-1897 studies at the School of Applied Arts in Munich. 1897-1901 pupil of Gabriel von Hackl and Franz von Stuck at Munich's Academy. Founding of the 'Sturmfackel' association. 1901 first exhibition in the 'Munich Secession'. 1902 journeys to Venice. 1903-1913 works at the journal 'Jugend'. 1905-1907 lives in Paris. Becomes acquainted with Henri Matisse and the circle of artists associated with the 'Café du Dôme'. 1909 travels to Florence. 1911 major exhibition at the Kunsthaus Brakl, Munich. 1912 participates in the 'Sonderbund' exhibition, Cologne. 1913 founding member of the 'New Munich Secession'. Member of the 'German Werkbund'.