Bart van der Leck 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 is in the Kröller-Müller Museum in Hoge Veluwe, Netherlands. After having met Mondrian and van Doesburg and having founded the Stijl movement with them, his style became completely abstract, as did Mondrian's. But after
Patrick van der Vorst for an undisclosed sum. After Auctionata's 2017 insolvency, ValueMyStuff was sold as a going concern. Van der Vorst bought back the ValueMyStuff assets in January 2017. Van der Vorst founded St George Valuations in 2011. It conducts in-person valuation assignments, appraising and cataloguing the contents of country estates, museum collections, and individual items from silver spoons to contemporary art. Van der Vorst is a contributor to the Huffington Post. Patrick van der Vorst Patrick van der Vorst (born 2 May 1971) is an entrepreneur, dealer and art expert and former winner on BBC's Dragons Den. Van der Vorst is the