Having recently published articles on the Savoy-Aosta Tiara, HERE, and the Austria-Este Tiara, HERE, I initially thought Countess Olympia was wearing the choker worn by her aunt, Archduchess Isabella on her wedding day, but this piece looks like a new (antique) acquisition (though it could also be a Napoléon/Bourbon/Habsburg/Savoy/Arco-Zinneberg Heirloom that we were unaware about)! I thought it was a lovely touch that she wore the sapphire and diamond earrings which were a wedding gift to Archduchess Maria Beatrice from her parents, and were also worn by Countess Anna last year! I wonder if there will be a Ball in the evening (hopefully with Tiaras), and if will get any pictures from that!