Author
- 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
- Rudulphus Bollartus1
- Sacro Regio Consiglio1
- Salvator Oliva1
- Santa Maria in Portico a Fontegiusta1
- Sebastian Schindler1
- Sebastian of Naples1
- Senate of the Republic of Venice1
- Sensatus1
- Serapion the Younger1