Ailly, Pierre d’ (1350–1420)

D’Ailly was a prolific writer on a number of subjects. His best known philosophical works concentrate on logic and on faith and reason, with strong influences from Ockham in particular. He also wrote influential works on the nature of the soul. He was one of the most eminent partisans of the late medieval nominalist movement and was numbered among the foremost doctores renovatores by King Louis XI in his decree against the nominalists. His works continued to be highly influential as late as the Reformation period.