Who shall tell the true story of the diamond necklace? It will probably never be told. The papers of the Cardinal de Rohan, which might have thrown much light upon the subject, were unfortunately destroyed. Little did Marie Antoinette think, as she entered Strasburg in triumph on her marriage journey, that she would encounter, in the magnificent robes of a cardinal’s coadjutor, a man who was to prove her deadly foe,—the insolent and profligate Prince Louis de Rohan. He had been ambassador at Vienna, where he had disgusted Maria Theresa by his profligacy and arrogance. She had procured his withdrawal. He had not been allowed to appear at the court of Versailles; and now for ten long years he had fretted and fumed under a sense of the royal displeasure. Boehmer, the crown jeweller, had, for a period of years, been collecting and assorting the stones which should form an incomparable necklace, in row upon row, pendants and tassels of lustrous diamonds, till the price had reached the royal pitch of three hundred and fifty thousand dollars. This costly “collar” he offered to the king, who would willingly have bought it for the queen had she desired it; but Marie Antoinette replied, that if the money were to be spent, it had better be used in fitting a frigate for the royal navy. His Most Christian Majesty concurred exactly in this sentiment, and, returning the necklace to Boehmer with the words, “We have more need of ships than of diamonds,” thought no more about the matter. Not so did the Cardinal de Rohan, and the intrigante Madame de Lamotte. They had made up their minds to possess the three hundred and fifty thousand dollars represented by the glittering gems. So they laid their clever heads together, and, by forging notes of the queen and sundry other little plots which were wonderfully successful, obtained the necklace, leaving Boehmer to look to the queen for payment. Of course payment was not forthcoming, and in his distress the jeweller related the affair to Madame Campan, telling her he feared he had been duped. Madame Campan proceeded at once to Versailles, and laid the matter before the queen. It was the 15th of August, 1784, Assumption day, and Prince Louis de Rohan, in full pontificals, and wearing the Grand Cross of St. Louis, arrived at Versailles to perform mass in the royal chapel; but he had scarcely entered the Œil de Bœuf, when he was summoned to the cabinet of the king. As he entered, Louis XVI. turned upon him suddenly, inquiring, “You have purchased diamonds of Boehmer?” “Yes, sire,” was the trembling reply. “What have you done with them?” the king added. “I thought,” replied the cardinal, “that they had been delivered to the queen.” “Who commissioned you to make this purchase?” “The Comtesse de Lamotte,” was the reply; “she handed me a letter from her Majesty, requesting me to obtain the necklace for her. Indeed, I thought I was obeying her Majesty’s wishes by taking this business upon myself.”
“How could you imagine, sir,” indignantly interrupted Marie Antoinette, “that I should have selected you for such a purpose, when I have not addressed you for eight years, and how could you suppose that I should have acted through the mediation of such a character as Madame la Comtesse de Lamotte?”
The cardinal was in the most violent agitation; he drew from his pocket a letter, directed to the Comtesse de Lamotte, and signed with the queen’s name. Her Majesty glanced at it, and instantly pronounced it a forgery, and the king added, “How could you, a prince of the church and grand almoner of my household, not have detected it? This letter is signed Marie Antoinette de France. Queens sign their names short; it is not even the queen’s handwriting.” Then drawing a letter from his pocket, and handing it to De Rohan, he said, “Are you the author of that letter?”
The cardinal turned pale, and, leaning upon a table, appeared as though he would fall to the floor.
“I have no wish, Monsieur le Cardinal,” the king added, “to find you guilty; explain to me this enigma; account for all these manœuvres with Boehmer. Where did you obtain these securities and these promissory notes, signed in the queen’s name?”
The cardinal was trembling in every nerve: “Sire, I am too much agitated now to answer your Majesty; give me a little time to collect my thoughts.” “Go into my cabinet,” replied the king; “you will there find papers, pens, and ink. At your leisure, write what you desire to to say to me.”
But the written statements of M. de Rohan were as unsatisfactory as his verbal ones. In half an hour he returned with a paper covered with blottings, alterations, and erasures. Louis’ anger was aroused, and, throwing open the folding doors, he cried out in imperious tones,—very unusual for him,—which resounded through the Œil de Bœuf and grande galerie: “Arrest the Cardinal de Rohan!” The Baron de Bretuil approached through the crowd of astonished courtiers, and, summoning the officer on guard, he indicated the cardinal with the words, “De par le roi, Monseigneur, you are arrested; at your risk, officer.” But, before the cardinal could be removed, he had spoken three words in German to one of his officials, and given him a slip of paper. The horse on which the man rode post haste to the cardinal’s palace in Paris, fell dead in the courtyard; but the red portfolio, containing the supposed autographs of the queen’s letters, lay in ashes before it could be sealed up in the name of justice and of the king. The cardinal was taken to the Bastile. More arrests followed, including that of the Comtesse de Lamotte. For nine months the trial lasted before the Council of the Grand Chambre. The Pope protested against a prince of the church being made accountable for his acts to any but the highest ecclesiastical tribunal (an assembly of the cardinals at Rome); while the haute noblesse looked on the cause of the Prince de Rohan as their own, considering the rights and privileges of their rank intrenched upon, when a near relative of the princes of the blood was put on his trial before the Council of the Grand Chambre. So the cardinal was eventually acquitted, and Madame de Lamotte alone was severely punished by flogging and branding on both shoulders.
Their Majesties were chagrined at the acquittal of M. de Rohan and shocked at the punishment of the countess. The former was an insult to the king, the latter to the queen; for Madame de Lamotte boasted a descent from the House of Valois and royal blood within her veins. Such was the affair of the Diamond Necklace, which, though apparently trivial in itself, involved consequences of the most momentous importance.
“Mind that miserable affair of the necklace,” said Talleyrand; “I should be in nowise surprised if it should overturn the French monarchy.”
Whoever were the guilty ones, Marie Antoinette was entirely innocent. She, however, experienced all the ignominy she could have encountered had she been involved in the deepest guilt, and the affair furnished a fine theme for the malevolence of Bellevue and Luviciennes.