Author
- Podestà of Monticchiello (Italy)1
- Podestà of Perugia1
- Podius, Milanutius1
- Polo, Marco, 1254-1323?1
- Pomponius Mela1
- Porcellio1
- Porphyry1
- Prince-Bishopric of Toul1
- Procopius1
- Prudentius1
- Pseudo-Bede1
- Pseudo-Bonaventure1
- Pseudo-Cyprian1
- Pseudo-Dionysius the Areopagite1
- Pseudo-Joachim of Fiore1
- Pseudo-Prosper1
- Ptolemaeus Tancredius1
- Publilius Syrus1
- Quodvultdeus1
- Radbod II1