Arsène Lupin is a fictional gentleman thief and master of disguise created in 1905 by French writer Maurice Leblanc.

Extract:

Two or three times each year, on occasions of unusual importance, such as the balls at the Austrian Embassy or the soirees of Lady Billingstone, the Countess de Dreux-Soubise wore upon her white shoulders "The Queen's Necklace."

It was, indeed, the famous necklace, the legendary necklace that Bohmer and Bassenge, court jewelers, had made for Madame Du Barry; the veritable necklace that the Cardinal de Rohan-Soubise intended to give to Marie-Antoinette, Queen of France; and the same that the adventuress Jeanne de Valois, Countess de la Motte, had pulled to pieces one evening in February, 1785, with the aid of her husband and their accomplice, Retaux de Villette.