Author
- Pseudo-Dionysius the Areopagite1
- Pseudo-Eusebius of Cremona1
- Pseudo-Hegesippus1
- Pseudo-Jerome1
- Pseudo-Joachim of Fiore1
- Publius Papinius Statius1
- Quintus Curtius Rufus1
- Raymond of Penyafort1
- Rocca, Antonio1
- Rutilius Taurus Aemilianus Palladius1
- Sacro Regio Consiglio1
- Santa Maria in Portico a Fontegiusta1
- Sicco Polenton1
- Siena1
- Sigismund1
- Signoria of Florence1
- Simone di Nicolo Petroni1
- Sixtus IV1
- Taddea Salamon1
- Tibullus1