Disputation of Barcelona
The Disputation of Barcelona (July 20–24, 1263) was a formal ordered medieval disputation between representatives of Christianity and Judaism regarding whether Jesus was the Jewish Messiah. It was held at the royal palace of King James I of Aragon in the presence of the King, his court, and many prominent ecclesiastical dignitaries and knights between Dominican Friar Pablo Christiani, a convert from Judaism to Christianity, and Nachmanides, a leading medieval Jewish scholar, philosopher, physician, kabbalist, and biblical commentator.