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
Theo van Gogh (art dealer) He also helped Vincent pursue his life as an artist through his unwavering emotional support and love. The majority of Theo's letters and communications with Vincent are filled with praise and encouragement. Vincent would send Theo sketches and ideas for paintings, along with accounts of his day to day experiences, to the delight and eager attention of Theo. While it is true that Theo is best known for being the brother of Vincent van Gogh and that one of the major roles of Theo van Gogh's life was his influence on Vincent's career, Theo himself made many important contributions within