The heirs of a Jewish Cabaret performer who was murdered by the Nazis in 1941 persuaded a Manhattan judge Tuesday to block the sale and transport of two Egon Schiele paintings that were part of his extensive collection.

Manhattan Supreme Court Justice Charles Ramos ordered London-based art dealer Richard Nagy and the Conservancy that runs the Park Avenue Armory's annual art show to freeze the disposal of the watercolors — worth an estimated $5 million — until he can hold a hearing December 1.