(in French) Alfred Franklin, Dictionnaire des noms (1875), p. 25;archive.org.
books.google.com
Thomas Kuehn, Heirs, kin, and Creditors in Renaissance Florence (2008), p. 183; Google Books.
R. N. Swanson, Universities, Academics and the Great Schism (2002), p. 209–10; Google Books.
(in Italian) Péter Erdő, Storia della scienza del diritto canonico: una introduzione (1999), p. 114; Google Books.
Joseph Canning, A History of Medieval Political Thought: 300-1450 (2006), pp. 178–9; Google Books.
Brian Tierney (editor), Authority and Power: studies on medieval law and government presented to Walter Ullmann on his seventieth birthday (1980), p. 227; Google Books.
Philippe Levillain, The Papacy: Gaius-Proxies (2002), p. 635; Google Books.
Richard A. McCabe, Incest, Drama and Nature's Law, 1550-1700 (2008), p. 48; Google Books.
