Author
- Roman Curia1
- Rupert, Count Palatine of Simmern1
- Rutgerus Hartman1
- Rutilius Taurus Aemilianus Palladius1
- Sacro Regio Consiglio1
- Safi al-Din al-Urmawi1
- Sallust1
- Santa Maria in Portico a Fontegiusta1
- Saʻīd Najm al-Dīn ʻAjamī1
- Seneca1
- Shams-ud-Din Kermani1
- Sharaf ad-Din Ali Yazdi1
- Sheikh Bedreddin1
- Sibawayh1
- Sibt al-Maridini1
- Sicco Polenton1
- Sidrac1
- Siena1
- Sigismund1
- Signoria of Florence1