Moses de León (c. 1240 – 1305), known in Hebrew as Moshe ben Shem-Tov (משה בן שם-טוב די-ליאון‎), was a Spanish rabbi and Kabbalist who first publicized the Zohar. Modern scholars believe the Zohar is his own work, despite his claim that he took traditions going back to Shimon bar Yochai and committed them to writing. His other works include Sefer ha-Rimon, written in Hebrew, and hundreds of pseudepigraphic responsa, commentaries, and Kabbalistic tracts which he falsely attributed to earlier authorities. Source: Wikipedia (en)