Answer:
   
   Rabbi Moshe Ben Nachmon, Nachmanides, 1194-1270. He wrote a commentary
   on Torah and halachah, and more than 50 other lucid and logical works.
   He participated in a disputation (theological argument with the
   Catholic Church) in Barcelona in 1263; although he won, he was forced
   to flee Spain, and as a result all future disputations forbade the
   Jewish participants to answer frankly. At age 72 he settled in
   Jerusalem, reorganized the Jewish community, and moved to Acco to
   become head its Jewish community.

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