Title
- Repertorium juris civilis1
- Reply to accusations made by Puritan ministers1
- Responsorium1
- Roman ceremonials1
- Romuleon1
- Rozier des guerres1
- Rubricae1
- Rule of Saint Clare1
- Rules1
- Saint Patrick's Purgatory1
- Scale of perfection1
- School miscellany1
- Scritture de signori Medici1
- Scritture dell'Arrigucci1
- Seals of the planets1
- Sermo de spiritu sancto1
- Sermones1
- Sermons for the temporale1
- Societas sanctae annae1
- Soliloquies1