Nazi plunder
"Portrait of Wally", a 1912 portrait, was purchased by Rudolf Leopold in 1954 and became part of the collection of the Leopold Museum when it was established by the Austrian government, purchasing more than 5,000 pieces that Leopold had owned. After a 1997–1998 exhibit of Schiele's work at the Museum of Modern Art in New York City, the painting was seized by order of the New York County District Attorney and had been tied up in litigation by heirs of its former owner who claim that the painting was Nazi plunder and should be returned to them.