Title: Jus ecclesiasticum universum brevi methodo ad discentium utilitatum explicatum seu lucubrationes canonicae in quinque libros decretalium Gregorii IX. Pontificis maximi
Subjects: Catholic Church. Pope (1227-1241 : Gregory IX), Betrothal (Canon law), Clergy (Canon law), Early works to 1800, Criminal law (Canon law), Canon law, Catholic Church