- Remoldus, Bishop of Ozilia1
- Rerum rusticarum libri tres (Varro, Marcus Terentius)1
- Ressano, Catterina1
- Ressano, Giovanni1
- Rhetoric (Aristotle)1
- Rhetoric--Study and teaching1
- Rhetorica ad Herennium1
- Riario, Raffaello, 1451-15211
- Richard III, King of England, 1452-14851
- Rites and ceremonies1
- Rithmomachia (Game)1
- Rochefort Demoulin, Louis1
- Roger, of St. Albans1
- Roman Civil War (Rome : 43-31 B.C.)1
- Romans--Religion1
- Rome (Italy). Maestri delle Strade1
- Rossi, Giovanni de'1
- Rossi, Girolamo de'1
- Royal supremacy (Church of England)1
- Rucellai, Cosimo, 1495-15191