(also Simeon ben Yoḥai) a 2nd century Rabbi, pupil of R. Akiva ben Yosef and teacher of R. Judah ha‐Nasiʾ (Judah the Prince). R. Shimeon began the classification of halakhah. He was the subject of legendary tales based on the period of his life in which he was in hiding from Roman persecution, reportedly living in a cave. The medieval kabbalists claimed that during this sojourn in the cave the doctrines of mysticism were revealed to him, and thus the Zohar is presented as teachings of, and tales about, R. Shimeon.