Author
- Rogerius1
- Roman Catholic Archdiocese of Reims1
- Rudulphus Bollartus1
- Rutilius Taurus Aemilianus Palladius1
- Sebastian of Naples1
- Sensatus1
- Serapion the Younger1
- Sextus the Pythagorean1
- Sicco Polenton1
- Sidonius Apollinaris1
- Simon Bredon1
- Simon de Lenis1
- Society of Jesus1
- Spain1
- Stephanus Hugoneti1
- Stephen Batman1
- Stephen Langton1
- Sylvester II1
- Tartaleoni family1
- Theobaldus Episcopus1