(b Paris, 12 April 1885; d Montpellier, 25 Oct 1941).
French painter, printmaker and writer. Taking Cubism as one of his points
of departure, he first developed a vocabulary of colour planes only
distantly dependent on observed motifs, and by the 1930s he had arrived at
a purely self-sufficient language of geometric forms. He remained active
as a theoretician until the end of his life, leaving a legacy of
influential writings on the development of abstract art.