The MS forms part of a collection of letters and documents from royals, nobles, and celebrities in France from the reign of Louis XII to the start of the French Revolution. This collection consists of 386 letters and is comprised of examples of the most famous names of three centuries of French history, including Louis XII, Francis I, Henri II, Catherine de Medicis, Francis II, Charles IX, Henri III, Duc de Guise, Henri IV and his wives, Clement VIII, Louis XIII, Anne of Austria, Cardinal Richelieu, Louis XIV and his wife Marie Thérèse, Marquise de Maintenon, Jean Baptiste Rousseau, Marquise de Sévigné, Cardinal Mazarin, Duc d’Orleans, Louis XV, his wife and daughters, Marquise de Pompadour, Comtesse du Barry, Jean Jacques Rousseau, Voltaire, Cardinal Fleury, Chevalier D’Éon, Louis XVI, Marie Antoinette, Princesse de Lamballe, Charles X, Louis XVI, Jacques Necker, Mirabeau, and Lafayette.