Jewish cabaret performer and art collector Fritz Grünbaum died in a concentration camp during the Holocaust. On Friday, his heirs were reunited with two drawings that prosecutors say the Nazis stole from him, then trafficked illegally through New York.

At a small ceremony at the Manhattan District Attorney’s office, law enforcement officials returned two drawings by Austrian artist Egon Schiele to Grünbaum’s descendants: “Girl with Black Hair” and “Portrait of a Man.”

“These were on his walls. He looked at them. He loved them,” Timothy Reif, whose father was raised by Grünbaum, said in an interview after the ceremony.