"Johannes Scotus Erigena"

Johannes Scotus Eriugena (c. 815–877), also known as Johannes Scotus Erigena, Johannes Scottus Eriugena, or John the Irishman, was an Irish theologian and Neoplatonist philosopher. Eriugena was highly proficient in Greek, an ability that was rare in Europe during his time. He moved to France to head the Palatine Academy at the invitation of King Charles the Bald.

One of his surviving treatises was a defense of the doctrine of free will against the monk Gottschalk’s position of extreme predestinarianism, which denied the inherent value of good works.