Ramban, also known as Rabbi Moshe ben Nachman, was a prominent Jewish scholar and philosopher born in 1194 in Tarragona, Spain. He is best known for his commentaries on the Torah and Talmud, which are still studied today. Ramban was a key figure in the Kabbalistic movement and contributed significantly to Jewish mysticism. In addition to his scholarly work, Ramban was involved in the Jewish community's affairs during a time of persecution. He later moved to Jerusalem, where he established a yeshiva and worked to strengthen Jewish life in the region. His legacy continues to influence Jewish thought and practice.