The Sprengel Museum Hannover, which focuses on German Expressionism and French Modernist painting, is one of the most important museums of 20th and 21st-century art. It was founded after the collection of Dr. Bernhard und Margrit Sprengel was donated to the City of Hanover in 1969. The new building was opened in 1979. Works by Max Ernst, Paul Klee, Emil Nolde, Pablo Picasso and Kurt Schwitters, as well as by groups of artists such as Die Brücke and the Blauer Reiter set the scene. Art after 1945 is represented in an impressive fashion by works by artists ranging from Gerhard Richter to Bruce Nauman. A special attraction are the rooms designed by artists, including the reconstruction of Kurt Schwitters’ legendary ‘Merzbau’, El Lissitzky’s ‘Abstract Cabinet’ and James Turrell’s light spaces. Particular emphasis in the collection is placed on photography. The Sprengel Museum Hannover unites the collections of modern art in what was formerly known as the Städtische Galerie and the Landesgalerie. http://alfredflechtheim.com/en/provenance-research/sprengel-museum-hannover/