Rav Avraham Ibn Ezra

Born in Tudela, Spain, during the height of the Golden Age. He established a close friendship with Rav Yehuda Halevi. He moved to various cities in Muslim Spain, including Granada, Cordova, and Lucena. In 1148, the Almohad invasion forced him to flee to Italy, Provence, and France, where he befriended Rabbeinu Tam and other grandsons of Rashi. He wrote a commentary on the Torah and Navi rooted in Hebrew grammar and the plain meaning of the text. He also authored dozens of works on astronomy, astrology, and mathematics, and was among the first to write Hebrew grammar works in Hebrew rather than Arabic.