The Vatican Library's Vaticanus Latinus collection is one of its largest holdings. The majority of the codices between the shelf numbers 3000 and 9000 remain as yet to be cataloged according to modern standards. Professor Girard Etzkorn has cataloged over one hundred of these manuscripts, selecting principally those pertaining to Franciscan authors and Franciscan history between the thirteenth and fifteenth centuries. He has successfully identified the authors of many treatises and sometimes entire works which were hitherto 'anonymous'. While the Iter Vaticanum Franciscanum...

Ancient and Medieval Philosophy, Series 2, No. 20The sixteen questions in Henry of Ghent's Quodlibet XV treat a range of issues the immaculate conception, the omnipotence of God, the nature of an "instance," the absolute and ordained powers of the pope, and the nature of a just war. The text found in this book was reconstructed based on manuscripts copied from a first Parisian university exemplar, manuscripts whose model was probably a second Parisian university exemplar, and a manuscript that was in the possession of Godfrey of Fontaines."

Ancient and Medieval Philosophy Series 2, No. 37The Stadsbibliotheek of Brugge houses a manuscript (ms. 510, f. 227ra-237vb) that holds a short logical text on the Syncategoremata. In this manuscript the text is ascribed to Henry of Ghent, who was a leading thinker of the second half of the thirteenth century. If Henry wrote the text, he had much more technical knowledge of logic and semantics than is often imagined. The text was influenced by the logical works of Peter of Spain."

Henry of Ghent, the most influential philosopher/theologian of the last quarter of the thirteenth century at Paris, delivered his fourth Quodlibet during 1279. This Quodlibet was written at the beginning of the height of his career. In total there are thirty-seven questions, which cover a wide range of topics, including theories in theology, metaphysics, epistemology, philosophical anthropology, ethics, and canon law.

In these questions, Henry presents his mature thought concerning the number of human substantial forms in which he counters the claims of the...