- Requesens, Giuseppe de'1
- Rerum rusticarum libri tres (Varro, Marcus Terentius)1
- Resurrection of Jesus Christ1
- Reversed leather bindings1
- Rhetoric (Aristotle)1
- Rhetoric, Ancient--Study and teaching1
- Rhetoric--Study and teaching1
- Riddles, Latin1
- Rites and ceremonies in the Bible1
- Rithmomachia (Game)1
- Rituals (Liturgical books)1
- Roger, of St. Albans1
- Roman Civil War (Rome : 43-31 B.C.)1
- Roman capitals (Lettering)1
- Roman law--Interpretation and construction1
- Rome (Italy). Maestri delle Strade1
- Royal supremacy (Church of England)1
- Rucellai, Cosimo, 1495-15191
- Rucellai, Guglielmo de'1
- Rupert, of Deutz, approximately 1075-11291