Secret Memoirs of Princess Lamballe — Catherine Ryan Hyde

Maria Theresa Luisa of Savoy, Princess de Lamballe (1749-1792) became the confidante of Queen Marie Antoinette. Catherine Hyde, called the "Marquise de Gouvion Broglie Scolari," purports to have collected, edited and annotated the private papers and letters of the princess. Hyde claims to have been the princess's secretary/confidante. The identity of Catherine herself is in question.