Heinz Berggruen – The Metropolitan Museum of Art https://www.metmuseum.org/research-centers/leonard-a-lauder-research-center/research-resources/modern-art-index-project/berggruen
Berlin, 1914—Neilly-sur-Seine, 2007
Picasso’s Sugar Bowl and Fan, 1909; Composition with Violin, 1912; and Bearded Man