Author
- Remigio dei Girolami1
- Richard Nykke1
- Richard Treby1
- Richard of Saint Victor1
- Roman Catholic Archdiocese of Siena1
- Rui de Pina1
- Rutilius Taurus Aemilianus Palladius1
- Sallust1
- Santa Maria in Portico a Fontegiusta1
- Seneca1
- Sextus Empiricus1
- Siena1
- Signoria of Florence1
- Simone di Nicolo Petroni1
- Sixtus IV1
- Smoyel1
- Suetonius1
- Thomas Malyus1
- Thomas Waleys1
- Titus Livius1