Title
- Register of writs1
- Regulations1
- Religious text1
- Repertorium juris civilis1
- Rerum suo tempore gestarum commentarius1
- Responsa1
- Revelations1
- Risālah fī masʼalat al-kafāʼah1
- Ritual1
- Rituale Dominicanum1
- Roman de la rose1
- Rosarium1
- Rule of Saint Augustine1
- Sacramentary1
- Sanad1
- Satires1
- School miscellany1
- Schwabenspiegel1
- Selections1
- Sequentiary1