Title
- Regula monachorum1
- Regum Romanae atque imperatorum liber ex veteris Germanis exceptus auctoris1
- Relacion de la manera et forma1
- Rhetoric text1
- Ritual1
- Rule of Saint Augustine1
- Rule of Saint Benedict1
- Rules1
- Ruralia commoda1
- Scale of perfection1
- Scholia1
- School miscellany1
- Scritture de signori Medici1
- Scritture dell'Arrigucci1
- Seals of the planets1
- Sententia declaratoria contra Elisabeth1
- Sermons against the Turks1
- Seven Penitential Psalms1
- Simbola Romanorum imperatorum1
- Snaith inquest record1