Author
- Richard II of England1
- Richard Nykke1
- Richard Ward1
- Richard de Fournival1
- Richard de Geveldale1
- Richard of Saint Victor1
- Ro. Ba1
- Robert Ashley1
- Robert Fabyan1
- Robert Reade1
- Robert de Saint-Martin1
- Robert de Sorbon1
- Robert of Gloucester1
- Roberto Caracciolo1
- Robine Bordinelle1
- Rodolfo Pio da Carpi1
- Roger Bigod, 2nd Earl of Norfolk1
- Roman Catholic Archdiocese of Mainz1
- Roman Catholic Diocese of Osma-Soria1
- Roman Catholic Diocese of Regensburg1