The Art Institute of Chicago has filed a detailed motion refuting allegations by New York prosecutors that it is holding onto artwork stolen during the Holocaust. The museum claims there is no evidence that the watercolor in question, “Russian War Prisoner” by Egon Schiele, was ever seized by the Nazis. The museum’s filing responds to a motion filed by the Manhattan district attorney’s office in February, which sought to have the museum turn over the artwork. Prosecutors accused the museum of “willful blindness” in purchasing the piece in 1966, as there was evidence suggesting it was looted from cabaret star Fritz Grünbaum before the start of World War II.