Title
- Commentary on Aristotle's Physics1
- Commentary on John1
- Commentary on Knox1
- Commentary on Summa theologica1
- Commentary on Virgil1
- Commission1
- Compendio delle istorie di Pisa1
- Compendium of biblical topics1
- Compositione1
- Confutatio libelli Philippi Melanchtonis cuius titulus est De officio principum1
- Coniecturarum liber1
- Consilium1
- Copia schedula1
- Coptic text1
- Coptic-Arabic lectionary1
- Copy book1
- Corregidor of the villa de Oropesa1
- Correspondence1
- Correspondence between Vettori and Machiavelli1
- De accidentibus animae rationalis1