In the Biblioteca Angelica at Rome an old Hebrew manuscript is extant, which was given to Antonini by Pope Leo X. The richly illuminated manuscript (Ms. Or 72), produced in the 14th century, contains Biblical texts in Hebrew, grammatical and rabbinic works. The British Museum contains a copy of "Makiri" and the "Midrash" on the minor Prophets, written for the cardinal at Tivoli, in the year 1514, by Johanan ben Jacob Sarkuse. The study of Jewish literature led the cardinal to a friendly interest in the Jews themselves, which he manifested both in his energetic encouragement of Reuchlin in the struggle referred to above and in a vain attempt which he made in the year 1531, in conjunction with the cardinal Geronimo de Ghinucci, to prevent the issue of the papal edict authorizing the introduction of the Inquisition against the Maranos.