Rabbi Mosheh ben Nachman (Ramban) was born in Gerona, Catalonia in 1194.
In 1263 he was ordered to participate in a debate with the convert Pablo
Christiani in Barcelona. Because of his success in this debate he felt
that it would be wise to leave the country, so he went to Eretz Yisroel,
where he died around 1270. He was the author of many halachic works,
including commentaries on the Torah and Talmud.
Ask a follow-up question