Isaac de Leon

Isaac de Leon — who was born in Toledo — was a kabbalist and the author of Ma'aseh Nissim, was a native of Leon, ‎and the pupil of Isaac Campanton. He was part of the kabbalistic circles that produced the work "‎Sefer HaMeshiv." An opponent of philosophy, he nonetheless studied Aristotelian logic as part of ‎the formal approach to halakhah of the school of Isaac Campanton. Joseph Karo and others ‎honored him with the title of "the great teacher." He was more than 70 years of age at his ‎death, which occurred shortly before the expulsion of the Jews from Spain.‎