Title
- Commentarius in Claudii Ptolemaei Harmonica1
- Commentary on Alfīyat Ibn Mālik1
- Commentary on Aristotle's Physics1
- Commentary on Clementine Constitutions1
- Commentary on Doctrinale1
- Commentary on Haftarah1
- Commentary on Liber sextus decretalium1
- Commentary on Porphyry1
- Commentary on Sentences1
- Commentary on hadiths1
- Commentary on the Ephemerides1
- Common book1
- Commonplace book1
- Compendium iuris canonici1
- Compendium religiosi vivendi1
- Confessional1
- Confessione generale1
- Confutatio libelli Philippi Melanchtonis cuius titulus est De officio principum1
- Constitutionibus concilii viennensis1
- Contemplations of the dread and love of God1