Christian Emil Marie Küpper (Theo van Doesburg) Born
Theo van Doesburg was born as Christian Emil Marie Küpper on 30 August 1883 in Utrecht as the son of the photographer Wilhelm Küpper 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 father, so that his first works are signed with Theo Doesburg, to which he later added the insertion "van".
His first exhibition was in 1908. From 1912 onwards, he supported his works by writing for magazines. Although he considered himself to be a modern painter at that time, his early work is in line with the Amsterdam Impressionists and is influenced by Vincent van Gogh, both in style and subject matter. This suddenly changed in 1913 after reading Wassily Kandinsky's Rückblicke, in which he looks back at his life as a painter from 1903–1913. It made him realize there was a higher, more spiritual level in painting that originates from the mind rather than from everyday life, and that abstraction is the only logical outcome of this.
Dutch painter, architect, designer and writer. He was officially registered as the son of Wilhelm Küpper and Henrietta Catharina Margadant, but he was so convinced that his mother’s second husband, Theodorus Doesburg, was his father that he took his name. Little is known of his early life, but he began painting naturalistic subjects c. 1899. In 1903 he began his military service, and around the same time he met his first wife, Agnita Feis, a Theosophist and poet.