Bart van der Leck he was painting in precisely that manner. That's the sort of person Doesburg was. No ideas of his own. And a cheat in bargain..." Among the public collections holding works by the artist are: Bart van der Leck Bart van der Leck (26 November 1876, Utrecht – 13 November 1958, Blaricum) was a Dutch painter, designer, and ceramicist. With Theo van Doesburg and Piet Mondrian he founded the De Stijl art movement. Son of a house painter, he started his career learning how to make stained glass in a shop in Utrecht. An example of his later stained glass work
Piet Van Waeyenberge Piet Van Waeyenberge Piet Paul August, Baron Van Waeyenberge (born Ghent 27 October 1938) is a Belgian businessman. He is a son of Camille Van Waeyenberge and a brother of Jozef Van Waeyenberge. He was one of the founders, and is currently president, of business club De Warande. He is married to Wina Proesmans and together they have 3 children. He graduated in 1956 from high school at the Sint-Jan Berchmanscollege in Brussels and obtained a licentate in Commercial and Financial Sciences at the Katholieke Universiteit Leuven in 1960. In 1962 he obtained a Master of Science in Agricultural Economics