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.