Mathematics and art through the strings as with a bird cage and to see one form within another which excited me." The artists Theo van Doesburg and Piet Mondrian founded the De Stijl movement, which they wanted to "establish a visual vocabulary elementary geometrical forms comprehensible by all and adaptable to any discipline". Many of their artworks visibly consist of ruled squares and triangles, sometimes also with circles. De Stijl artists worked in painting, furniture, interior design and architecture. After the breakup of De Stijl, Van Doesburg founded the Avant-garde Art Concret movement, describing his 1929–1930 "Arithmetic Composition", a series of four black
Virgin and Child with Canon van der Paele his "Mass of St Gregory" of 1550. Both panel and frame are in good condition. That the panel retains its original frame makes it especially interesting to art historians, apart from its aesthetic qualities. The canvas has suffered little paint loss, board cracking, or other damage, and has been cleaned several times since it came into the possession of the Groeningemuseum. Virgin and Child with Canon van der Paele The Virgin and Child with Canon van der Paele is a large oil-on-oak panel painting completed around 1434–36 by the Early Netherlandish painter Jan van Eyck. It shows the painting's donor,