The heroism of the prisoners, and Silvio Pellicos account of his imprisonment (Le mie Prigioni), did much to enlist the sympathy of Europe for the Italian cause.
The form in which certain of the references to him are couched favours the above view; the compiler of Guiron le Cortois says in his prologue that "maistre Gautier Map qui fu clers au roi Henrydevisa cil l'estoire de monseigneur Lancelot du Lac, que d'autre chose ne parla it mie gramment en son livre"; and in another place he refers to Map, "qui fit lou pro pre livre de monsoingnour Lancelot dou Lac."
In 1832 appeared his Gismonda da Mendrizio, Erodiade and the Leoniero, under the title of Tre nuovi tragedie, and in the same year the work which gave him his European fame, Le Mie prigioni, an account of his sufferings in prison.
It is in the simple narrative and naive egotism of Le Mie prigioni that he has established his strongest claim to remembrance, winning fame by his misfortunes rather than by his genius.
See Piero Maroncelli, Addizioni alle mie prigioni (Paris, 1834); the biographies by Latour; Gabriele Rosselli; Didier, Revue des deux mondes (September 1842); De Lomenie, Galerie des contemp. illustr.