- Religious poetry, Syriac1
- Remboîtage1
- Renaut de Montauban (Chanson de geste)1
- Rent1
- Repentance--Catholic Church1
- Repentance--Islam1
- Requesens, Antonio de'1
- Requesens, Berengario de'1
- Requesens, Bernardo de'1
- Requesens, Giuseppe de'1
- Rerum rusticarum libri tres (Varro, Marcus Terentius)1
- Revelation--Islam1
- Reversed leather bindings1
- Revolutions1
- Rhetoric (Aristotle)1
- Rhetoric, Ancient--Study and teaching1
- Rhetoric--Study and teaching1
- Rice--Religious aspects--Hinduism1
- Riddles, Latin1
- Rifāʻī, Aḥmad ibn ʻAlī, 1106?-11821