History of painting group's theories. Next to van Doesburg, the group's principal members were the painters Piet Mondrian, Vilmos Huszár, and Bart van der Leck, and the architects Gerrit Rietveld, Robert van 't Hoff, and J. J. P. Oud. The artistic philosophy that formed a basis for the group's work is known as "neoplasticism" — the new plastic art (or "Nieuwe Beelding" in Dutch). Proponents of De Stijl sought to express a new utopian ideal of spiritual harmony and order. They advocated pure abstraction and universality by a reduction to the essentials of form and colour; they simplified visual compositions to the vertical
Vrancke van der Stockt often reproduce motifs from paintings by Van der Weyden with only minor alterations, as is evidenced by "Kneeling Donor with Saint John the Baptist", now in the collection of the Allen Memorial Art Museum, in which the figure of the saint closely resembles that in Van der Weyden's "Medici Madonna". His "Pietà" is likewise modelled on van der Weyden's "Pietà". Although he was primarily a painter, Van der Stockt also completed cartoons for embroideries and tapestries and designs for woodcuts. None of Van der Stockt's works are documented; rather, they have been attributed to him based on their stylistic relationship