Paul Cézanne, Portrait de Madame Cézanne (Portrait of Madame Cézanne), c. 1885, oil on canvas. On long-term loan from the Berggruen family, Museum Berggruen. Photo: Dietmar Katz
Paul Klee, Landschaft in Blau (Landscape in Blue), 1917, watercolor, pencil, pen, and ink on primed paper on cardboard. On long-term loan from the Berggruen family, Museum Berggruen. Photo: Dietmar Katz
Paul Cézanne, Étude de pomme (Study of an Apple), ca. 1885, graphite and watercolor on paper. On long-term loan from the Berggruen family, Museum Berggruen. Photo: Dietmar Katz