1893 - 1970 A Polish sculptor and theoretician of art. He lived in France from 1955. One of the precursors of Cubism and Futurism in Poland. A co-founder of  the first avant-garde art groups - Formiści (1917 - 1922, Leon Chwistek, Tytus Czyżewski, Stanisław Ignacy Witkiewicz)  and  Bunt (1918 ? 1920, Adam Bederski, Małgorzata i Stanisław Kubiccy, Władysław Skotarek, Stefan Szmaj, Jerzy Wroniecki).

Works in collections: National Museum in Warsaw, Krakow, Muzeum Sztuki in Łódź, Museu de Arte da Pampucha in Belo Horizonte, August Zamoyski Museum in Jabłoń, Musee Auguste Zamoyski in Prieure des Granges.

Selected exhibitions: Bunt Exhibition, Galeria Die Aktion, Berlin (1918); Museum of Arts and Crafts in Lviv (1920);  Zacheta Salon, Warsaw (1920); Galerie Berthe Weill, Paris (1924); Formists exhibition, Polish Artistic Club,Warsaw (1919); International exhibition of sculptures in Zurich (1931); Escola de Bellas Artel, Rio de Janeiro (1942); Biennale in Săo Paulo (1951); Museu de Arte Moderna, Săo Paulo (1954); retrospective exhibition, Centre Culturel de la Ville de Toulouse (1977); Presences Polonaises L'Art. Vivant, Centre Georges Pompidou, Paryż (1983); Formists National Museum in Warsaw (1985).