Paul Fridolin Kehr, (1914), Italia pontificia : sive, Repertorium privilegiorum et litterarum a romanis pontificibus ante annum 1598 Italiae ecclesiis, monasteriis, civitatibus singulisque personis concessorum.(in Latin) Vol. VI. pars ii ( Berolini: Weidmann), p. 43, no. 5.
Nicomede Bianchi, Storia della monarchia piemontese dal 1773 sino al 1861, Volume 4 (Torino: Bocca 1885), "Capitolo Sesto: Lo stato e la chiesa, ridornamento diocesano del Piemonte, L'Imperatore Napoleone, Pio VII, l'episcopato piemontese," (in Italian), pp. 270-340.
Bulletin des lois de l'Empire français 4<super>e</super> Série, Tome troisième (Paris: Imprimerie impériale, An. XIV [1804]), pp. 69-92, at p. 70: "supprimimus, annullamus, ac perpetuo extiguimus, titulum, denominationem, totumque statum præsentem, supradictarum ecclesiarum Secusina, Pineroliensis, Fossanensis, Albensis, Derthonensis, Bobiensis, Casalensis, Bugellensis et Augustana...."
Notizie per l'anno 1806 (Roma: Cracas 1806), p. 6. Fulvio Vditullo, "Monsignor Villaret vescovo “napoleeonico” di Casale," in: La Provincia di Alessandria 21 (1974), pp. 8-12.
Bishop Erba attended the Fourth Provincial Synod of Milan in 1576, and signed the decrees: Acta Ecclesiae Mediolanensis,(in Latin), Volume 1 (Milan: P. Pagnonio, 1843), p. 206. Eubel III, p. 155 with note 10.
Villaret resigned at the abdication of Napoleon, and returned to Paris. C. F. Zundeler. Par occasion de l'avénement au siége épiscopal de Casal, de monseigneur Jean Chrysostome de Villaret, déjà évêque d'Amiens, l'an 1805 de l'ère chrétienne, XIII de la République française. (Turin: J. Giossi). Société bibliographique (France) (1907). L'épiscopat français depuis le Concordat jusqu'à la Séparation (1802-1905). Paris: Librairie des Saints-Pères. p. 40. Ritzler-Sefrin, VII, p. 66, 70, 137.
Borsari (Bursenus) had been a priest of Mantua, and held the degree of Doctor in utroque iure. He was bishop of Alessano in southern Italy from 20 November 1591 to 12 June 1592. Cappelletti XIV, pp. 585-586. Eubel III, pp. 103, 155. Gauchat, Hierarchia catholica IV, p. 137 with note 2. David M. Cheney, "Bishop Settimio Borsari"Catholic-Hierarchy.org; Retrieved March 21, 2016.[self-published source]
Tullius del Carretto (according to his tomb inscription) died on 13 October 1614. Antonio Bosio, Cenni biografici sopra il venerabile servo di Dio Tullio del Carretto di Millesimo, vescovo di Casale (Savona: tip. Vescovile di Miralta 1863). Cappelletti XIV, p. 586 (with funeral inscription). Eubel III, p. 155. Gauchat, Hierarchia catholica IV, p. 137 with note 3. David M. Cheney, "Bishop Jullio del Carretto"Catholic-Hierarchy.org; Retrieved March 21, 2016.[self-published source]