Author
- Podestà of Monticchiello (Italy)1
- Poggio Bracciolini1
- Pope1
- Pseudo-Cyprian1
- Pseudo-Prosper1
- Ptolemy1
- Quintus Curtius Rufus1
- Rabanus Maurus1
- Radbod II1
- Rapolano Terme1
- Remigius of Auxerre1
- Richard II of England1
- Robert Grosseteste1
- Robert de Gretham1
- Roger Bigod, 2nd Earl of Norfolk1
- Salvator Oliva1
- Santa Maria in Portico a Fontegiusta1
- Sigismund1
- Simone di Nicolo Petroni1
- Sixtus V1