Author
- Robert Gazeley1
- Robert Holkot1
- Robert Kilwardby1
- Robert Reade1
- Robert de Sorbon1
- Roberto Caracciolo1
- Rocca, Antonio1
- Rodolfo Pio da Carpi1
- Rodrigo Sánchez de Arévalo1
- Roger Alban1
- Roger Bigod, 2nd Earl of Norfolk1
- Roger Waltham1
- Rogerius1
- Rolandino de' Passaggeri1
- Roman Catholic Archdiocese of Mainz1
- Roman Catholic Archdiocese of Reims1
- Roman Catholic Diocese of Osma-Soria1
- Roman Catholic Diocese of Regensburg1
- Roman Catholic Diocese of Zaragoza1
- Roman Curia1