The official version of the dauphin's history as accepted under the Restoration was drawn up by Simien Despréaux in his uncritical _Louis XVII._ (1817), and is found, fortified by documents, in M. Eckard's _Mémoires historiques sur Louis XVII_. (1817) and in A. de Beauchesne's _Louis XVII., sa vie, son agonie, sa mort. Captivité de la famille royale au Temple_ (2 vols., 1852, and many subsequent editions), containing copies of original documents, and essential to the study of the question, although its sentimental pictures of the boy martyr can no longer be accepted. L. de la Sicotière, "Les faux Louis XVII.," in _Revue des questions historiques_ (vol. xxxii., 1882), deals with the pretenders Jean Marie Hervagault, Mathurin Bruneau and the rest; see also Dr Cabanes, _Les Morts mystérieuses de l'histoire_ (1901), and revised catalogue of the J. Sanford Saltus collection of Louis XVII. books (New York, 1908). Catherine Welch, in _The Little Dauphin_ (1908) gives a résumé of the various sides of the question. Madame Royale's own account of the captivity of the Temple was first printed with additions and suppressions in 1817, and often subsequently, the best edition being that from her autograph text by G. Lenôtre, _La Fille de Louis XVI., Marie Thérèse Charlotte de France, duchesse d'Angoulême, le Temple, l'échange, l'exil_ (1907). There are two collections of writings on the subject: _Marie Thérèse de France_, compiled (1852) by the marquis de Pastoret, and comprising beside the memoir written by Marie Thérèse herself, articles by M. de Montbel, Sainte-Beuve, J. Lemoine, La Guéronnière and extracts from Joseph Weber's memoirs; and _Mémoires de Marie Thérèse duchesse d'Angoulême_, comprising extracts from the narratives of Charles Goret (_Mon Témoignage_, 1852), of C. F. Beaulieu (_Mémoire adressée à la nation_, 1795), of L. G. Michaud (_Opinion d'un Français_, 1795) and of Mme de Tourzel (_Mémoires_ 1883). Cf. A. Lanne, _La Soeur de Louis XVII._, and the articles on "Madame Royale," on the "Captivité de la famille royale au Temple" and on the "Mise en liberté de Madame" in M. Tourneux's _Bibliographie de l'histoire de Paris pendant la révolution française_ (vol. iv., 1906, and vol. i., 1890).