THE HAGUE.- In the early 20th century, a group of artists caused a huge furore in the Munich art world. Calling themselves Der Blaue Reiter, the artists produced expressive, brightly coloured, lyrical paintings which were to prompt the development of Expressionism in Germany. The core members of the group were Russian artist Wassily Kandinsky and kindred spirit Franz Marc. Although the group was so important for the later development of modern art, this exhibition at the Gemeentemuseum Den Haag in spring 2010 will be the first major retrospective of its work ever held in the Netherlands. Many of the works were seen earlier as part of the successful Kandinsky exhibitions at the Guggenheim Museum in New York and the Centre Pompidou in Paris.