Theo van Doesburg 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 and singing he decided to become a painter. He always regarded his stepfather, Theodorus Doesburg, to be his natural
Theo van de Klundert and History of Economics at Tilburg University. Among his doctoral students are Casper van Ewijk, Henk van Gemert, George Gelauff, Ad van de Gevel, Raymond Gradus (in cooperation with Piet Verheijen), Rob de Groof, Gustaaf Hes, Lex Meijdam, Richard Nahuis, Henk Peer, Eric Schaling (in cooperation with Sylvester Eijffinger), Sjak Smulders, Ton van Schaik, Herman Thoben and Jeroen van de Ven, Herman Wijffels. In 2001, Van de Klundert retired from Tilburg University. Since 1967, Van de Klundert has been associated with the scientific journal "De Economist", initially as editor, later on as chairman of the board of editors. Since 1976