Argentine authorities are searching for a 17th-century portrait by Italian Baroque artist Giuseppe Vittore Ghislandi after the long-missing work appeared in an online real-estate listing for a seaside villa in Mar del Plata. The oil painting, titled “Portrait of a Lady” and absent from the art world for roughly 80 years, was identified earlier this week by journalists at Dutch daily Algemeen Dagblad in photographs advertising the property. Federal prosecutor Carlos Martínez ordered a raid on the house on 27 August after Interpol issued an alert, but police left empty-handed. Officers seized a carbine, a .32-calibre revolver and archival documents related to engravings and drawings, while Martínez said two residents—identified locally as Patricia Kadgien and her spouse—are under investigation for possible concealment and contraband. A tapestry now hangs where the painting had been visible in the listing, according to investigators. Historians say the portrait was among more than 1,000 works looted by the Nazis from Amsterdam art dealer Jacques Goudstikker in 1940. Wartime records trace the canvas to Friedrich Gustav Kadgien, a senior aide to Hermann Göring who settled in Argentina after World War II and was never tried for war crimes. The case has renewed attention on unresolved claims for art plundered during the Holocaust, with Goudstikker’s heirs pledging to pursue restitution once the painting is recovered.