Henri-Robert-Marcel Duchamp (28 July 1887-2 October 1968) was a French, naturalized American painter, sculptor, chess player and writer whose work is associated with Cubism and Conceptual Art.
Further Resources:
Metropolitan Museum of Art – http://www.metmuseum.org/toah/hd/duch/hd_duch.htm
Tate – http://www.tate.org.uk/art/artists/marcel-duchamp-1036
MOMA – https://www.moma.org/learn/moma_learning/themes/dada/marcel-duchamp-and-the-readymade