Editing Pope Gregory XI (section)

==References==
*Hanawalt, G.Barbara. ''The Middle Ages: An Illustrated History'', 1998, Oxford Univ. Press, p.&nbsp;143
*Cairns, E.Earl. ''Christianity Throughout the Centuries: A History of the Christian Church'', 1996, Zondervan, pp.&nbsp;241 & 248–250.
*Ocker, Christopher, '' Johannes Klenkok: a friar's life, c. 1310–1374 '', American Philosophical Society, 1993, {{ISBN|0-87169-835-8}}
*Clarke, Peter D. "Between Avignon and Rome: Minot Penitentiaries at the Papal Curia in the Thirteenth and Fourteenth Centuries." ''Rivista Di Storia Della Chiesa in Italia'', vol. 63, no. 2, 2009, pp.&nbsp;455–510
*De Angelis, Laura, and Vicki Whittaker. "Florence's Ruling Class at the Turn of the Fourteenth and Fifteenth Centuries." ''Revue Française de Science Politique'' (English Edition), vol. 64, no. 6, 2014, pp.&nbsp;65–79
*Harvey, Margaret ''The English in Rome, 1362–1420: Portrait of an Expatriate Community'', (Cambridge University Press, 2004), 3.
*Peterson, David S. 2002. "The War of the Eight Saints in Florentine Memory and Oblivion." In ''Society and Individual in Renaissance Florence'', Ed. William J. Connell.
*Richardson, C., 2009. ''Reclaiming Rome: Cardinals in the Fifteenth Century''. Leiden: Brill.
* {{Cite book |last=Rollo-Koster |first=Joëlle |date=2008 |title= Raiding Saint Peter: Empty Sees, Violence, and the Initiation of the Great Western Schism (1378) |publisher=Brill |isbn=978-9-0474-3311-8 |ol=29585957M |page=182 |author-link=Joëlle Rollo-Koster}}
* {{Cite book |last=Rollo-Koster |first=Joëlle |date=2015 |title=Avignon and Its Papacy, 1309–1417: Popes, Institutions, and Society |publisher=Rowman & Littlefield |isbn=978-1-4422-1532-0 |ol=30394591M |author-link=Joëlle Rollo-Koster}}
*Villegas, D., 2021. "Catherine of Siena's spirituality of political engagement". HTS Teologiese Studies / Theological Studies, 77(2).
*Walsh, M., 2011. ''The Cardinals: Thirteen Centuries of the Men Behind the Papal Throne''. Grand Rapids, Mich.: William B. Eerdmans Pub.
* {{Cite book |last1=Williman |first1=Daniel |first2=Karen |last2=Corsano |title=The Interdict of Florence (31 March 1376): New Documents |series=Rivista Di Storia Della Chiesa in Italia |volume=56 |issue=2 |date=2002}}