Author
- Raginaldus Collus Rubeus1
- Ranieri Farnese1
- Ranuccio Farnese1
- Rapolano Terme1
- Raymond of Sabunde1
- Ressani family1
- Richard Bolter1
- Richard Burdet1
- Richard Treby1
- Richard Ward1
- Richard de Fournival1
- Richard de Geveldale1
- Robert Gazeley1
- Robert Reade1
- Rolandino de' Passaggeri1
- Roman Catholic Archdiocese of Mainz1
- Roman Catholic Diocese of Osma-Soria1
- Roman Catholic Diocese of Regensburg1
- Roman Catholic Diocese of Zaragoza1
- Roman Curia1