Rabbi Avraham bar Shmuel Zakuto (from the Spanish exiles) was a great sage in the wisdom of astrology, and he studied this wisdom at the cathedral in Saragossa. All the peoples sought him out, and his counsel based on the observation of the stars was like the counsel of Achitophel. He authored Sefer HaYuchasin [(Sha'arei Kedusha 62b). And Tzedah LaDerech writes] it appears he composed his book around the year 5262. [He authored Ben Arba'im LaBinah on astronomy, and from the innermost matters of the soul and the Highest World and the knowledge thereof, that is 5367, and Sefer Tikkun Zechut, astronomy. (Rabbi Avraham HaLevi Beiso authored Sefer Mishrei Katrin, Sha'arei Kedusha 47b)].