M. H. J. Schoenmaekers
Mathieu Hubertus Josephus Schoenmaekers (13 December 1875, Maastricht – 18 December 1944, Laren) was a former Catholic priest, philosopher and theosophist who developed an esoteric philosophy called Christosophy. Active in early 20th-century Dutch intellectual and artistic circles, he was also a theorist of Formative Mathematics, whose ideas on geometry, colour, and polarity influenced Piet Mondrian's art theory of Neoplasticism and the De Stijl movement of Theo van Doesburg.