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
Theo van Gogh (art dealer) caused by "heredity, chronic disease, overwork, sadness". In 1914, Theo's body was exhumed and reburied with his brother at Auvers-sur-Oise. Theo van Gogh (art dealer) Theodorus "Theo" van Gogh (; 1 May 1857 – 25 January 1891) was a Dutch art dealer. He was the younger brother of Vincent van Gogh, and Theo's unfailing financial and emotional support allowed his brother to devote himself entirely to painting. Theo died at the age of 33, six months after his brother died at the age of 37. Theo is widely known for his influence on his brother; however, this often overshadows the