Author
- Raphael Kaẓin1
- Ravana1
- Refael Mordekhai Malki1
- Regia Camera (Duchy of Milan)1
- Remigio dei Girolami1
- Remigius of Auxerre1
- Revanî1
- Reynoldus Romanus1
- Ricardus, de Mediavilla, approximately 1249-1308?1
- Richard II of England1
- Richard Nykke1
- Richard of Saint Victor1
- Ro. Ba1
- Robert Ashley1
- Robert Cooke1
- Robert Fabyan1
- Robert de Saint-Martin1
- Robert de Sorbon1
- Robert of Gloucester1
- Roberto Caracciolo1