The current Duke of Aosta is Prince Amadeo, grandson of Helene,Duchess of Aosta. Current Archduke of Autria-Este is Prince Lorenz of Belgium. His mother, HI&RH The Dowager Archduchess of Austria-Este (nee Princess Margarita di Savoy-Aosta) now owns the tiara. The diamond tiara was a wedding present to Princess Helene, wife of the 2nd Duke." Convertible, it now has a much more simple form.