" In 1775 Louis XVI had been faced with his own Coronation Oath crisis. His chief minister, Turgot, wanted the King to drop the King’s pledge to extirpate heretics, which had actually been inserted in the thirteenth century to deal with the Albigensian heresy of the Cathars, but was now applied to Protestants. "

― Antonia Fraser , The King and the Catholics: The Fight for Religious Liberty in Georgian England