Necklace Collection :
Sotheby's in May 2013. Amethyst and Diamond Demi-Parure: “Originally owned by Queen Therese of Bavaria, Princess of Saxe-Hildburghausen (b.1792-1854) who bequested the jewels to her second son, King Otto of Greece, Prince of Bavaria (b.1832-1862). As he and his wife, Queen Amalia of Greece, Princess of Oldenburg b.(1818-1875), were childless these jewels were handed down to the king's nephew, Prince Ludwig Ferdinand of Bavaria (b.1859-1949), thence by descent. The parure his known within the…