Works of art by Austrian expressionist artist Egon Schiele are on display at the Manhattan District Attorney's Office, Wednesday, Sept. 20, 2023, during a ceremony returning the pieces to the heirs of Fritz Grnbaum, a well-known cabaret performer who was arrested in 1938 and later died in the Dachau concentration camp. (AP Photo/Bobby Caina Calvan) NEW YORK – During his abbreviated lifetime, a cabaret performer named Fritz Grünbaum amassed a trove of artwork — more than 400 pieces, including 80 sketches and paintings by the Austrian expressionist Egon Schiele that were ultimately plundered by the Nazis. For a while, many...