Ramban

Rabbi Moses ben Nachman of Girona — Nachmanides, known by the acronym Ramban — was the leading Jewish figure of thirteenth-century Spain: Torah commentator, Talmudist, philosopher, physician, and one of the founders of the Kabbalah. His commentary on the Torah reads the text at once for its plain sense, its philosophy, and its hidden mystical meaning. In 1263 King James I of Aragon compelled him to defend Judaism in a public disputation at Barcelona; he did so ably, and paid for it with exile, spending his last years in the Land of Israel.