Author
- Robert Kilwardby1
- Robert Reade1
- Robert de Gretham1
- Robert de Saint-Martin1
- Robert de Sorbon1
- Robert of Gloucester1
- Roberto Caracciolo1
- Robine Bordinelle1
- Rocca, Antonio1
- Rodolfo Pio da Carpi1
- Rodrigo Sánchez de Arévalo1
- Rodrigo de Rueda1
- Roffredo Epifanio1
- Roger Alban1
- Roger Bigod, 2nd Earl of Norfolk1
- Roger Waltham1
- Rogerius1
- Rolandino de' Passaggeri1
- Roman Catholic Archdiocese of Mainz1
- Roman Catholic Archdiocese of Reims1