Halsbandaffäre
Charlotte was a niece of the Cardinal de Rohan, whose disgrace in the Affair of the Diamond Necklace helped set the stage for the French Revolution by subjecting the royal family and court to notoriety. She was also related to Victoire de Rohan, "Duchesse de Montbazon" and Governess of the Children of France during the reign of Louis XVI and Marie Antoinette.