When was the Dutch artist who was part of Art Concret born?
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.
Philip Sadée Philip Lodewijk Jacob Frederik Sadée (7 February 1837 The Hague – 14 December 1904 The Hague) is an artist who belongs to the Hague School.