Author
- Quintus Curtius Rufus1
- Rabanus Maurus1
- Rafaino Caresini1
- Raginaldus Collus Rubeus1
- Ralph of Longchamp1
- Ranulf Higden1
- Rashi1
- Remigius of Auxerre1
- René of Anjou1
- Republic of Venice1
- Richard II of England1
- Richard Rolle1
- Richard de Fournival1
- Richard de Geveldale1
- Roberto Caracciolo1
- Roger Bigod, 2nd Earl of Norfolk1
- Roman Catholic Archdiocese of Siena1
- Rupert, Count Palatine of Simmern1
- Rutgerus Hartman1
- Rutilius Taurus Aemilianus Palladius1