A realty website listing led to the discovery of what lost artifact?

An online listing of a home for sale in Argentina has led to the return of a long-lost painting that was looted by Nazis during World War II. Giuseppe Ghislandi’s "Portrait of a Lady" was among more than 1,000 works that were taken from the collection of Jacques Goudstikker, a Jewish art dealer, during the war. Lost for 80 years, it was believed to have traded hands within the Nazi ranks before ending up with SS officer Friedrich Kadgien.

Kadgien fled Germany and eventually ended up in Argentina, where he passed in 1978. One of his daughters recently listed his old home with Argentinian realty company Robles Casas & Campos. But when the company posted the listing online, journalists identified "Portrait of a Lady" hanging on the wall in one of the photos.

The listing was taken down once the information was made public, and authorities who went to the home were unable to retrieve the painting, as it had been replaced with a tapestry. However, the family later handed the piece over to Argentinian authorities via their lawyer. The family of Goudstikker, from whom the painting was taken, has requested that it be returned to them.