ten o'clock
`` You have leave to go . '' That interview took place on August 9th . The 15th was the Feast of the Assumption , and also the name-day of the Queen , therefore a gala day at Court , bringing a concourse of nobility to Versailles . Mass was to be celebrated in the royal chapel at ten o'clock , and the celebrant , as by custom established for the occasion , was the Grand Almoner of France , the Cardinal de Rohan . But at ten o'clock a meeting was being held in the King 's cabinet , composed of the King and Queen , the Baron de Breteuil , and the Keeper of the Seals , Miromesnil . They were met , as they believed , to decide upon a course of action in the matter of a diamond necklace . In reality , these puppets in the hands of destiny were helping to decide the fate of the French monarchy .