21 rue La Boétie brings together sixty odd masterpieces of modern art (Pablo Picasso, Fernand Léger, Georges Braque, Henri Matisse, Marie Laurencin...), some of which are shown for the first time in France, coming from major public collections, including the Centre Pompidou, the Musée d’Orsay, Musée Picasso in Paris, the Deutsches Historisches Museum in Berlin, and from large private collections such as that belonging to David Nahmad or the Fondation Gandur pour l’Art.

A passionate art dealer, shrewd businessman and learned amateur, Paul Rosenberg was a friend and agent to some of the most important artists of his time, many of whom would become the undisputed masters of modern art. His mythic gallery space was the hub or cradle of modern painting in France, and to a broader extent for Europe and the United States.