This volume looks at the writings and actions of Franciscus Zabarella (1360-1417), the professor of canon law at the University of Padua (later cardinal), as he sought to find and explicate a viable and legal solution to the crisis of the Great Western Schism (1378-1417). "Morrissey's studies provide an excellent account of Zabarella as both a man of thought and a man of action, a friend of humanists, and above all a consummate jurist. The author also nicely illustrates Zabarella's practical realism by editing and translating a little handbook of advice that the great canonist wrote for the university teachers and students of his age. Most of it would apply just as well to their present-day counterparts." -Catholic Historical Review "Morrisey's articles are an indispensable resource for studying the Conciliar Movement. So this is a book for libraries of law, history and theology, and one that scholars working on the history and theory of conciliarism will need to use." - Paul Avis, University of Exeter