John Nicholas Murphy:The chair of Peter, or, the papacy considered in its institution, development and organization, and in the benefits which, for over eighteen centuries, it has conferred on mankind. London: Burns and Oates; New York: Catholic Publication Society Co., 1886 (archive.org[abgerufen am 6.Juni 2022]).
Miles Pattenden:Electing the Pope in Early Modern Italy, 1450-1700. Oxford University Press, 2017, ISBN 978-0-19-879744-9 (google.com[abgerufen am 6.Juni 2022]).
Ferdinando Petruccelli della Gattina:Histoire diplomatique des conclaves. Lacroix, 1866 (google.com[abgerufen am 6.Juni 2022]).
Arthur Robert Pennington:The Papal Conclaves. Society for Promoting Christian Knowledge, 1897 (google.com[abgerufen am 6.Juni 2022]).