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
Pieter Voltelyn Graham van der Byl a very popular and respected figure by both opposition and government. In parliament, a National Party politician asked the speaker of the house if they could refer to van der Byl as "Oom Piet" (which is an Afrikaans term of respect, meaning "uncle Piet"), this was duly granted and van der Byl was henceforth known as "Oom Piet" in parliament and in the media. During his years in opposition, van der Byl's views on National Party government policy never changed, he vehemently continued to openly criticise the Apartheid regime for its extreme suppression of the non-white population and its transformation