Rysselberghe Theo Van

Théo (Théophile) van Rysselberghe (23 November 1862 - 14 December 1926) was a Belgian neo-impressionist painter, who played a pivotal role in the European art scene at the turn of the century.

Reference
http://en.wikipedia.org/wiki/Th%C3%A9o_van_Rysselberghe