Title
- Commentary on Clementine Constitutions1
- Commentary on Doctrinale1
- Commentary on Hafez1
- Commentary on Liber sextus decretalium1
- Commentary on Mashāriq al-anwār1
- Commentary on Porphyry1
- Commentary on Psalms1
- Commentary on Sentences3
- Commentary on Terence2
- Commentary on the Ephemerides1
- Commission1
- Common book1
- Commonplace book1
- Compendio delle istorie di Pisa1
- Compendium iuris canonici1
- Compendium religiosi vivendi1
- Confessione generale1
- Confutatio libelli Philippi Melanchtonis cuius titulus est De officio principum1
- Coniecturarum liber1
- Consolation of Philosophy2