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CANNES, FRANCE - MAY 22: Princess Camilla of Bourbon-Two Sicilies, Duchess of Castro and Prince Carlo of Bourbon-Two Sicilies, Duke of Castro attend The Harmonist Gala Event during the 70th annual Cannes Film Festival at Club Albane on May 22, 2017 in Cannes, France. (Photo by Neilson Barnard/Getty Images)