heir daughter Josephine of Leuchtenberg married Crown Prince Oscar of Sweden, later becoming Queen of Sweden. Incidentally, Oscar was the son of King Charles XIV John of Sweden and his wife Désirée, who was originally engaged to Napoleon Bonaparte; she had broken it off upon meeting the man she would eventually marry, becoming the Queen Consort of Sweden and Norway.
Upon her marriage to Crown Prince Oscar, Josephine brought with her an astounding collection of jewels, which included the Swedish sapphire parure, the emeralds which are now part of the Norwegian royal jewel collection, and the amethysts. The original demi-parure consisted of a necklace, pendant earrings, two bracelets, a brooch, and a corsage ornament. Queen Silvia later had the necklace mounted on a tiara frame, and the two bracelets combined with the corsage ornament to create a necklace. This provided the Swedish royal family with an amethyst tiara, necklace, pendant, brooch, and earrings. This set comprises exquisitely large amethysts of the deepest and most desirable shades of purple which are set in gold, surrounded by diamonds set in silver. Queen Silvia wore the amethysts to the wedding of the Crown Prince of Denmark (here) and to the 1984 Nobel Prize award ceremony (here);