- Registers (Lists)1
- Regula (Benedict, Saint, Abbot of Monte Cassino)1
- Religion1
- Religions1
- Remboîtage1
- Repentance--Judaism1
- Rerum rusticarum libri tres (Varro, Marcus Terentius)1
- Resurrection of Jesus Christ1
- Rhetoric (Aristotle)1
- Richard III, King of England, 1452-14851
- Riddles, Persian1
- Right of property (Jewish law)1
- Ripley, George, -1490?1
- Risālah al-waḍʻīyah (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Rites and ceremonies1
- Rithmomachia (Game)1
- Rochefort Demoulin, Louis1
- Roger, of St. Albans1
- Roman Civil War (Rome : 43-31 B.C.)1
- Romances, Turkish1