Abstract

The paper deals with the issue of the common nature (extramental universal) and universal unity (logical universal) in the theories of two of the foremostScotists in the Baroque Era, the Italian Conventual Bartholomew Mastrius and the Irish Observant John Punch. They are in the scholarly community well-known for their antagonistic interpretations of the teaching of Duns Scotus. On the basis of the exposition of two representative places from Scotus’s Ordinatio and Questions on Aristotle’s Metaphysics, I claim that it is Mastrius’s theory, which follows Scotus’s model more tightly. Punch’s theories are doctrines which are syncretically inspired by un-Scotist’s sources (above all “Suarezian,” “Thomistic,” and “Ockhamistic”). The hermeneutical advantage of Punch’s theory is that it remarkably mirrors the “Zeitgeist” of early modern academic philosophy, substantially determined by the Jesuit’s exposition of Aquinas.