The Philadelphia Museum will return a 16th-century shield that scholars say was once owned by Archduke Franz Ferdinand and later taken by the Nazis.The Philadelphia Museum will return a 16th-century shield that scholars say was once owned by Archduke Franz Ferdinand and later taken by the Nazis.Read MoreArts and Antiquities Looting, Art, Museums, Philadelphia Museum of Art, Ferdinand, Franz (1863-1914), Czech Republic
