When Nazi Germany invaded the Netherlands in 1940, the German and Dutch Lewenstein family was persecuted because of their Jewish heritage. Lewenstein-Weyermann's daughter Wilhelmine emigrated with her husband José da Silva via the Netherlands to
Mozambique in 1938. Her son Robert went to
Vence, France. In 2017 the Lewenstein heirs filed a lawsuit in the US District Court,
Southern District of New York against the
Bayerische Landesbank for the restitution of a painting by
Wassily Kandinsky called
Das Bunte Leben [The Colorful Life] (1907). Lewenstein had lent the painting to the Stedelijk Museum in 1933 and, in circumstances that remained unclear, it was auctioned in 1940 at the Frederik Muller & Co auction house. On 9 October 1940
Das bunte Leben was acquired by Salomon B. Slijper whose widow sold it in 1972 to the Bayerische Landesbank. The bank loaned it to the
Städtische Galerie im Lenbachhaus and the Kunstbau in
Munich where it was located at the time of the claim. In June of 2023, the Advisory Commission recommended that the Kandinsky be restituted to Lewenstein's heirs. ==References==