Author
- Petrus Apianus1
- Petrus de Monastero1
- Philipp Melanchthon1
- Pico, Joseph Ramon1
- Pier Francesco Portinari1
- Piero Vettori1
- Piero de Ricci1
- Pierre Bersuire1
- Pinḥas ben Avraham Ḥai Ashkenazi1
- Pliny the Younger1
- Podestà of Monterubbiano (Italy)1
- Podestà of Perugia1
- Pope1
- Porcellio1
- Prince-Bishopric of Toul1
- Principio Fabricii1
- Privy Council of the United Kingdom1
- Pseudo-Augustine1
- Pseudo-Bonaventure1
- Pseudo-Cicero1