Paris in the Belle Époque arrived in Montmartre at the turn of the century. Drawn by the reputation of Paris as the world capital of art, Pablo Picasso came from Barcelona in 1900 to share an apartment with the poet Max Ernst and began by painting the cabarets and prostitutes of the neighborhood. Amedeo Modigliani and other artists lived and worked in a building called Le Bateau-Lavoir during the years 1904–1909. In 1909, Picasso painted one of his most important masterpieces, "Les Demoiselles d'Avignon", in Le Bateau-Lavoir. Led by Picasso and Georges Braque, the artistic movement cubism was born in Paris. Henri Matisse came to
20th-century Western painting for that spiritual knowledge. Other major pioneers of early abstraction include Swedish painter Hilma af Klint, Russian painter Kazimir Malevich, and Swiss painter Paul Klee. Robert Delaunay was a French artist who is associated with Orphism, (reminiscent of a link between pure abstraction and cubism). His later works were more abstract, reminiscent of Paul Klee. His key contributions to abstract painting refer to his bold use of color, and a clear love of experimentation of both depth and tone. At the invitation of Kandinsky, Delaunay and his wife the artist Sonia Delaunay, joined The Blue Rider (Der Blaue Reiter), a