Author
- Rodrigo Sánchez de Arévalo2
- 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
- Roman Catholic Archdiocese of Siena3
- Roman Catholic Diocese of Arezzo3
- Roman Catholic Diocese of Osma-Soria1
- Roman Catholic Diocese of Regensburg1
- Roman Catholic Diocese of Zaragoza1
- Roman Curia1
- Roman Rota1
- Royal Audiencia of Lima1
- Royal Chancellery of Granada2
- Rozanes, Yosef, 15th century1