Papal Conclaves

• Allen, John L. Conclave: The Politics, Personalities, and Process of the Next Papal Election. New York: Image, 2002.
• Baumgartner, Frederic J. Behind Locked Doors: A History of the Papal Elections. New York: Palgrave Macmillan, 2003.
• Baumgartner, Frederic J. “‘I Will Observe Absolute and Perpetual Secrecy:’ The Historical background of the Rigid Secrecy Found in Papal Elections.” The Catholic Historical Review 89 (2003): 165-81.
• Benedict XVI. Apostolic Letter “Normas nonnullas”: On Certain Modifications to the Norms Governing the Election of the Roman Pontiff. 2013. http://www.vatican.va/holy_father/benedict_xvi/motu_proprio/documents/hf_ben-xvi_motu-proprio_20130222_normas-nonnullas_en.html.
• Benedict XVI. Litterae apostolicae motu proprio datae de aliquibus mutationibus in normis de electione Romani Pontificis. 2007. http://www.vatican.va/holy_father/benedict_xvi/motu_proprio/documents/hf_ben-xvi_motu-proprio_20070611_de-electione_lt.html.
• Burkle-Young, Francis A. Passing the Keys: Modern Cardinals, Conclaves, and the Election of the Next Pope. Lanham, MD: Madison Books, 1999.
• Gregory X. Ubi periculum. In Jean Gaudemet, Les élections dans l’Église latine des origines au XVIe siècle. Paris: F. Lanore, 1979. Pp. 209-12.
• Hebblethwaite, Peter. The Next Pope. London: Fount, 1995.
• John Paul II. Apostolic Constitution “Universi dominici gregis”: On the Vacancy of the Apostolic See and the Election of the Roman Pontiff. 1996. http://www.vatican.va/holy_father/john_paul_ii/apost_constitutions/documents/hf_jp-ii_apc_22021996_universi-dominici-gregis_en.html.
• Lincoln, Evelyn. “Publishing, Secrecy, and Curiosity in a German Conclave Print.” Art in Print 2 (2012): 4-8.
• Paul VI. Constitution apostolica Romano pontifici eligendo. 1975. http://www.vatican.va/holy_father/paul_vi/apost_constitutions/documents/hf_p-vi_apc_19751001_romano-pontifici-eligendo_lt.html.
• Pham, John-Peter. Heirs of the Fisherman: Behind the Scenes of Papal Death and Succession. Oxford: Oxford University Press, 2004.
• Tozzi, Simonetta. Incisioni barocche di feste e avvenimenti: giorni d’allegrezza. Roma: Gangemi, 2002.
• Walsh, Michael J. The Conclave: A Sometimes Secret and Occasionally Bloody History of Papal Elections. Lanham, MD: Sheed & Ward, 2003.
• Zizola, Giancarlo. Il conclave: storia e segreti: l’elezione papale da San Pietro a Giovanni Paolo II. Roma: Newton Compton, 1993.

The Papacy

• Coppa, Frank J. Encyclopedia of the Vatican and Papacy. Westport, CT: Greenwood Press, 1999.
• Duffy, Eamon. Saints & Sinners: A History of the Popes. New Haven, CT: Yale University Press, in association with S4C, 1997.
• O’Malley, John W. A History of the Popes: From Peter to the Present. Lanham, MD: Sheed & Ward, 2010.
• Reese, Thomas J. Inside the Vatican: The Politics and Organization of the Catholic Church. Cambridge, MA: Harvard University Press, 1996.
• Schimmelpfennig, Bernhard. The Papacy. New York: Columbia University Press, 1992.
• Ullmann, Walter. A Short History of the Papacy in the Middle Ages. 2nd ed. London: Routledge, 2003.
• Wright, Anthony David. The Early Modern Papacy: From the Council of Trent to the French Revolution : 1564-1789. New York: Longman, 2000.

Works consulted for preparing the exhibit guide:

• Allen, Conclave.
• Baumgartner,  “‘I Will Observe Absolute and Perpetual Secrecy’.”
• Benedict XVI, Normas nonnullas.
  
• Benedict XVI, De aliquibus mutationibus in normis de electione Romani Pontificis. 
• Gregory X, Ubi periculum.
• John Paul II, Universi dominici gregis.
• Walsh, The Conclave.