Arnaldus, de Villanova, d. 1311, Cicero, Marcus Tullius, Johannes, de Rupescissa, ca. 1300-ca. 1365, Petrarca, Francesco, 1304-1374, and Vergerio, Pietro Paolo, 1370-1444
Alanus, de Insulis, d. 1202, Albertus, Magnus, Saint, 1193?-1280, Arnaldus, de Villanova, d. 1311, Jābir ibn Ḥayyān, and Khālid ibn Yazīd al-Umawī, 7th cent
