The artist Vilhelm Lundstrøm (1893-1950) was one of the central figures of early Danish modernism. Inspired by French Cubism, in 1917 he introduced the collage to Danish art. Subsequently he took up painting again. His works in this period reflect his so-called "crumpled" style, which can be seen clearly in the work Frokost i det grønne (Luncheon on the Grass) from 1920, in which he paraphrases Eduard Manet's famous painting of the same name. He went on to cultivate a simpler, more geometric style. Together with Svend Johansen, Axl Salto and Karl Larsen he formed the artist group De Fire (The Four).