Author
- Paul, of Cologne1
- Pepo d'Antonio di Lando Degli Albizzi1
- Pero Fernández de Matanco1
- Peter Damian1
- Peter Lombard1
- Petrus Comestor1
- Pietro Marcello1
- Pius II1
- Plato1
- Poggio Bracciolini1
- Pope1
- Pseudo-Augustine1
- Pseudo-Cicero1
- Pseudo-Dionysius of Halicarnassus1
- Raimondo Marliani1
- Ranulf Higden1
- Richard of Saint Victor1
- Robert Ashley1
- Robine Bordinelle1
- Rocca, Antonio1