At the Picasso Museum, the treasures of Léonce Rosenberg's apartment. At the end of the Great War, he participated as an expert in the ransacking of the gallery of Daniel-Henry Kahnweiler, a German national.

His gallery, L'Effort moderne, established itself as an academy of the movement, exhibiting with method and pedagogy Auguste Herbin and Henri Laurens, Metzinger and Léger... This article is reserved for subscribers. You have 72% left to discover. Flash sale -70% on digital subscription I ENJOY IT Already subscribed? Log in.