B. Ioannis Duns Scoti, Doctoris Subtilis ac Mariani, Ordinis Fratrum Minorum Commentaria Oxoniensia ad IV. Libros Magistri Sententiarum [Ordinatio]

Two volumes bound in four. xxxv, 1351; [iv], 940 pp. Brown cloth, gilt titles and rules. Latin text. A commentary on the work of Peter Lombard, considered the magnum opus of John Duns Scotus, the medieval Scholastic thinker who was as influential in his time as St. Thomas Aquinas and William Ockham. This work includes all his important philosophical theories and arguments, John Duns Scotus was a Scottish Catholic priest, Franciscan friar, and Scholastic theologian, best known for his philosophical doctrine of 'the univocity of being,' and for his argument regarding the existence of God. "He studied and taught at Oxford [and] the University of Paris, from which he was briefly exiled for supporting Pope Boniface VIII in his quarrel with King Philip IV.In 1307 he became professor of theology at Cologne, perhaps to escape charges of heresy over his defense of the doctrine of the Immaculate Conception, which the Dominicans and secular authorities opposed. His two major works are Ordinatio and Quaestiones quodlibetales, both left unfinished at his death." - Encyclopedia Britannica