Note 158 — HISTORY OF THE IRON MASK.
Reading edition
Appendix, Nos. 131, 132. Madame Campan mentions having heard Lewis the Sixteenth tell his wife, that the Count de Maurepas (who, both from his age and situation, was very likely to know the truth,) had informed him that the Iron Mask was “a prisoner dangerous from his intriguing disposition, and a subject of the Duke of Mantua.”