sentences:  As a result, Uhde's collection (including works by Georges Braque, Raoul Dufy, Juan Gris, Auguste Herbin, Marie Laurencin, Fernand Léger, Jean Metzinger, Pablo Picasso, Jean Puy and Henri Rousseau) was confiscated in 1914 and sold by the government in a series of auctions at the Hôtel Drouot in 1921.From 1919–1920, Uhde worked with Helmut Kolle and lived with him in Chantilly, France.Uhde became active as a pacifist in Weimar Germany, but returned to France in 1924, moving back to Chantilly in 1927.