Cubism Cubism", (from 1909 to 1914) during which time Juan Gris emerged as an important exponent (after 1911); and finally Cooper referred to "Late Cubism" (from 1914 to 1921) as the last phase of Cubism as a radical avant-garde movement. Douglas Cooper's restrictive use of these terms to distinguish the work of Braque, Picasso, Gris (from 1911) and Léger (to a lesser extent) implied an intentional value judgement. Cubism burgeoned between 1907 and 1911. Pablo Picasso's 1907 painting "Les Demoiselles d'Avignon" has often been considered a proto-Cubist work. Georges Braque's 1908 "Houses at L’Estaque" (and related works) prompted the critic Louis
Braque Triptych Braque Triptych The Braque Triptych (or the Braque Family Triptych) is a c. 1452 oil-on-oak altarpiece by the Early Netherlandish painter Rogier van der Weyden. When open, its three half-length panels reveal, from left to right, John the Baptist, The Virgin Mary with Jesus and Saint John the Evangelist, and on the right, Mary Magdalene. When the wings are closed, the work shows a vanitas motif of a skull and cross. "The Braque Triptych" is the only surviving devotional work by van der Weyden known to be painted for private rather than public display. The altarpiece was probably commissioned by