Nahmanides
(Moses b. Nahman) (b. 1194, d. 1270)

Nahmanides was one of the greatest Jewish thinkers of his generation. His commentary on the Pentateuch is printed in standard editions along with those of Solomon b. Isaac (Rashi) and Abraham Ibn Ezra. His halakhic (legal) works are also widely used by students of Talmud. He has been aptly described as "a genius at intellectual crossroads." He represented a synthesis between the Talmudic traditions of the Tosafists in Northern France, the emergent Kabbalah of Provence, and the Andalusian cultural milieu. It is to a great extent due to his influence and to that of his colleagues and students that Barcelona became a center of Jewish culture in the thirteenth and fourteenth centuries.

Nahmanides lived in Girona, and has been primarily associated with that city, and particularly with a circle of Kabbalists based there. Moshe Idel, however, has argued that Nahmanides' approach to Kabbalah is distinct from that of the Girona Kabbalists. In particular, he emphasizes Nahmanides' greater resistance to discussing kabbalistic secrets in writing, and consequent reliance on oral transmission from master to disciple, and on his focus on Kabbalah as a means of illuminating the esoteric meaning of the Torah and the commandments rather than as an abstract theosophical system. Idel points to Nahmanides' role in establishing an influential circle of Kabbalists based in Barcelona whose success he contrasts to the decline of the Girona circle in the next generation. In any case, Nahmanides had many close connections in Barcelona, including his contemporary Samuel HaSardi, and a number of his students.

Apart from his work in Kabbalah, law and exegesis, Nahmanides played a critical role as a communal leader at several points in his life. In the 1230s, he took a moderate position in the conflict over the works of Maimonides. Although critical of some features of Maimonides' rationalism, he understood it better than many of its other opponents did. In 1263, he was ordered to represent the Jews in the Disputation of Barcelona. In response to the apostate Paul Christian's radical strategy of arguing that rabbinic literature contains evidence that Jesus was the messiah, Nahmanides attacked both Paul's specific readings and his entire methodology.

Towards the end of his life, Nahmanides left Spain for the Land of Israel, arriving in 1267. He died in 1270.