Title
- Rime1
- Ritual1
- Roman de la rose1
- Roman history1
- Rule of Saint Augustine1
- Rule of Saint Benedict1
- Ruralia commoda1
- Scale of perfection1
- Schedule of tariffs1
- Scholia1
- School miscellany1
- Scritture de signori Medici1
- Scritture dell'Arrigucci1
- Seals of the planets1
- Senjas y carta de hidalguia de Diego Ximenes de Ençiso Vizino1
- Sentencia contra el Almine1
- Sententia declaratoria contra Elisabeth1
- Sermons against the Turks1
- Seven Penitential Psalms1
- Shahnameh1