Author
- Richard de Fournival1
- Richard de Geveldale1
- Roman Catholic Archdiocese of Siena1
- Rupert, Count Palatine of Simmern1
- Rutgerus Hartman1
- Rutilius Taurus Aemilianus Palladius1
- Sancho IV of León and Castile1
- Sarrazius de Bethencourt1
- Saʻīd ibn Hibat Allāh ibn al-Ḥusayn1
- Sebastian Schindler1
- Seigneury de Brousses1
- Seneca1
- Siena1
- Sixtus IV1
- Spain1
- Terence1
- Thiebaus de Maliers1
- Thomas Brooke1
- Usuard1
- Veruela Abbey1