John Scottus Eriugena was an Irish scholar at the court of Charles the Bald, the most original Latin thinker between Augustine and Anselm. He translated the works of Pseudo-Dionysius and the Ambigua of Maximus the Confessor, wrote the controversial tract on predestination, and set out his Neoplatonic vision in the Periphyseon, the dialogue on the division of nature.