Adolf Weinmüller

[4] In 1934, the anti-Jewish law on the auctions was drafted with Weinmüller's assistance, helping to drive Jewish competitors out of the art business.

Thanks to the Nazi anti-semitic race laws, Adolf Weinmüller was able to take control of Jewish art dealerships and auctions house like those of Hugo Helbing and Samuel Kende.

[2] In addition to his dual business as an art dealer and auctioneer, Weinmüller also held exhibitions on his premises with painters popular in the Nazi movement, including: to Lothar Bechstein and Hans Flüggen (1875–1942).

After the annexation of Austria in 1938, Weinmüller founded a second auction house in Vienna and Aryanized the business of the Jewish art dealer family Kende.

With Hans Posse, Ernst Heinrich Zimmermann (1886–1971) and Johannes Graf von Waldburg, Weinmüller belonged to a commission that in June 1941 inspected cultural assets at the Gestapo headquarters in Prague that had been stolen from Jews and politically unpopular Czechs by the Nazis.

His clientele included Martin Bormann, who was responsible for furnishing the Obersalzberg, the Brown House and the German Castle in Posen, and dealers like the gallery owner Maria Almas-Dietrich, who supplied art for Hitler's special museum planned in Linz.

[9] Despite evidence that Weinmüller was deeply implicated in Nazi looting of the Jews, he escaped prosecution, and was classified as only a "follower" (Mitlaufer) in the Munich denazification process in June 1948.

The owner of the Neumeister company since 2008, Katrin Stoll, made the still existing business documents available for provenance research and restitution efforts by Meike Hopp.

[12][13][14] So much art looted from Jews by the Nazis passed through the Adolf Weinmüller auction house that an index of consignor names was published in order to assist families searching for their lost works of art[15] Examples of Jewish collectors whose plundered possessions passed through Weinmüller included Siegfried Laemmle[16] whose case was featured in the 2014 documentary Under the Hammer of the Nazis.