Author
- Pietro Cavallini1
- Pietro Paolo Muscarello1
- Pietro Parenzi1
- Pietro de' Crescenzi1
- Pius IV1
- Podestà of Monticchiello (Italy)1
- Polo, Marco, 1254-1323?1
- Pomponius Mela1
- Porphyry1
- Prince-Bishopric of Toul1
- Procopius1
- Pseudo-Augustine1
- Pseudo-Bede1
- Pseudo-Bonaventure1
- Pseudo-Cicero1
- Pseudo-Cyprian1
- Pseudo-Dionysius the Areopagite1
- Pseudo-Joachim of Fiore1
- Pseudo-Prosper1
- Pseudo-Seneca1