Theo van Doesburg last issue of De Stijl as a memorial issue with contributions by old and new members from De Stijl. Theo van Doesburg Theo van Doesburg (, 30 August 1883 – 7 March 1931) was a Dutch artist, who practiced painting, writing, poetry and architecture. He is best known as the founder and leader of De Stijl. He was married to artist, pianist and choreographer Nelly van Doesburg. Theo van Doesburg was born Christian Emil Marie Küpper on 30 August 1883, in Utrecht, the Netherlands, as the son of the photographer and Henrietta Catherina Margadant. After a short training in acting
Piet van Stuivenberg Piet van Stuivenberg Pieter Antonie (Piet or Pieter) van Stuivenberg (January 10, 1901 - December 16, 1988) was a Dutch artist, who was active as sculptor, painter, lithgrapher, and graphic artist. Born in Schiedam, Van Stuivenberg received his art education at the Academy of Fine Arts and Applied Sciences now Willem de Kooning Academy) in Rotterdam. From 1921 to 1927 he attended the evening art classes in sculpting. Van Stuivenberg started his sculptor career as stonemason, and was first influenced by the expressionism and later abstract working with geometric shapes and tighter. In Rotterdam he jointed the art society R33,