Otto Gerstenberg

Otto Gerstenberg (11 September 1848 – 24 April 1935) was a German entrepreneur, mathematician and an early 20th-century Berlin art collector.

His daughter Margarete married physicist Hans Georg Scharf.

During World War II, part of his collection was destroyed and other works were seized from Nazi Germany, ending up in Russian museums.

[1][2] His collected paintings went to his daughter, Margarete Scharf, who stored most in the bunker of the Nationalgalerie in Berlin during the war.

[3] The surviving artworks remained in family ownership and were inherited by his grandson, Dieter Scharf.