Author
- Pietro Flores1
- Pietro Lamberti1
- Pietro Marcello1
- Pietro degli Angeli1
- Pistoia1
- Pius IV1
- Pius V1
- Pliny the Younger1
- Podius, Milanutius1
- Porphyry1
- Portugal1
- Prague1
- Principio Fabricii1
- Privy Council of the United Kingdom1
- Prizrenli Şemʻî1
- Proclus1
- Prosper of Aquitaine1
- Prudentius1
- Pseudo-Cicero1
- Pseudo-Joachim of Fiore1