The family of a Jewish art dealer killed at Auschwitz is suing Germany in the United States for damages incurred by the Nazis' confiscation of his collection, including paintings by El Greco, Pissarro and Rubens.
Walter Westfeld was arrested in 1938 on currency violation charges, sent to prison and then to Auschwitz, where he was killed, probably in 1943.
The lawsuit estimates that the value of Westfeld's collection would now be "tens of millions" of dollars.
The decision to sue Germany for damages is unusual. In most cases, the heirs of Nazi victims have sought the restitution of individual artworks -- as happened last week when the Minneapolis Institute of Arts returned a painting by Fernand Leger to the heirs of a French art dealer.
"There are several hundred items, and we don't know where they all are," said Jeffrey Schoenblum, a lawyer representing the Westfield family (the Westfelds anglicized the name). "It would be really difficult to locate all the works of art, which may be scattered around the world.
"We are suing the German government. It bears the legal and moral responsibility."
According to Jewish Claims Conference estimates, about 650,000 artworks were plundered by the Nazis during Adolf Hitler's 12-year rule. Hitler appointed a commission to hunt down old masters for a planned museum in his hometown of Linz, while Hermann Goering scoured Europe to expand the private collection he kept at his country estate near Berlin.
German Foreign Ministry spokeswoman Amelie Utz said the suit is "in very early stages of the process" and is being examined by the government and justice authorities.