Thietmar of Merseburg, Chronicon (ed. Iohannes M. Lappenberg), Book VII, ch. 1-3, in: G. H. Pertz, ed. (1839). Monumenta Germaniae historica (in German and Latin). Vol. Scriptorum Tomus III. Hannover: Hahniani. pp. 836–837. Polonio, pp. 181-185.
Camuzzi was born at Lugano and was a cleric of Como. Pope Pius V named him Bishop of Bobbio on 19 November (Ughelli says December) 1568. He held a diocesan synod on 7 March 1574. In 1595 the Swiss residents of the diocese of Como requested his transfer to the diocese of Como, but the request was refused by Pope Clement VIII. Ughelli says he died in Rome in 1602, having left the diocese in disarray and the episcopal palace in ruins. Ughelli, p. 949. Cappelletti, p. 658. F. Gasparolo, in: Rivista di storia, arte, archeologia per la provincia di Alessandria (in Italian). Vol. III. 1894. pp. 179–180. Eubel, III, p. 136.
Aulario was a patrician of Alessandria, and had been Archpriest of the Collegiate Church of S. Giovanni Battista di Monza. On the appointment of Pope Pius V he served as a Referendary of the Two Signatures (Justice and Mercy) in the Papal Court. He was named Bishop of Bobbio on 26 August 1602 by Pope Clement VIII. While he was serving as Apostolic Delegate to the Diocese of Pavia by appointment of Pope Paul V he died suddenly of a fever, on 11 January 1607. Ughelli, p. 949. Cappelletti, pp. 658-659. F. Gasparolo, in: Rivista di storia, arte, archeologia per la provincia di Alessandria (in Italian). Vol. III. 1894. pp. 179–180. Eubel, III, p. 136.
Porrati was born at Castellazzo Bormida (diocese of Alessandria) in 1825, and served as a priest of that diocese. He held a doctorate in theology, and taught theology at the diocesan seminary, where eventually he became Rector. He was preconised by Pope Leo XIII on 20 August 1880, and consecrated in Rome by Cardinal Luigi Bilio on 29 August. He became Canon Penitentiary of the Cathedral Chapter of Alessandria. He died on 24 February 1902. Il Monitore ecclesiastico (in Italian). Vol. II. Maratea. 1879. p. 111.{{cite book}}: CS1 maint: location missing publisher (link) Ritzler-Sefrin, VIII, p. 151.
Marelli was born in Milan in 1858. He was named Bishop of Bobbio on 16 December 1907 by Pope Pius X. He was transferred to the diocese of Bergamo on 15 December 1914. He was a friend and correspondent of Angelo Roncalli (John XXIII). La Diocesi di Milano, guida ufficiale del clero per l'anno 1930 (in Italian). Milano: Tip. pont. e arc. S. Giuseppe. 1930. p. 373.
A member of the family of the Counts of Cossombrato, Bonesio was born in Turin in 1705. In 1740 he became private secretary of the General of the Capuchin Order, and in 1746 he was elected Provincial of the Capuchin province of Piedmont. In 1747 he was elected Procurator General of his order at the Papal Curia, where Pope Benedict XIV made him an examiner of bishops, and a Consultor to the Congregation of Indulgences and Relics. He was nominated bishop of Bobbio by King Charles Emanuel III, and approved by Pope Clement XIII on 27 January 1766. He died on 28 July 1780. Ritzler-Sefrin, VI, p. 125 with note 5. Am. Teetaeri, in: Dictionnaire d'histoire et de géographie ecclésiastiques, Vol. IX (Paris: Letouzey, 1937), pp. 842-843. (in Italian)
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Paola Guglielmotti (2015), "Pietroaldo", in: Dizionario Biografico degli Italiani, Volume 83 (2015). (in Italian)
