Title
- Commentary on Ptolemy1
- Commentary on Romans1
- Commentary on Wisdom of Solomon1
- Commentary on al-Miṣbāḥ1
- Commentary on the Ephemerides1
- Commentary on the Old Testament1
- Common book1
- Communiloquium1
- Compendium iuris canonici1
- Compendium morale1
- Compendium religiosi vivendi1
- Compleynt of Cryst1
- Confessio Catholicae fidei Christiana1
- Confessio amantis1
- Confessione generale1
- Consolatio peccatorum seu Processus Belial1
- Contemplations of the dread and love of God1
- Contra Julianum1
- Contra impedimiam1
- Coptic-Arabic glossary1