Author
- Origen1
- Ottavio Strada1
- Paschualis Bernardus1
- Patrick Graham, 1st Lord Graham1
- Paul IV1
- Paul of Pergula1
- Paul, of Cologne1
- Pedro Henrique de Bragança1
- Pere Marsili1
- Pere Rossell1
- Peter Olivi1
- Petrus Alphonsi1
- Petrus Bonus1
- Petrus Veronensis1
- Petrus de Braco1
- Petrus de la Cavalleria1
- Piccolomo Oltremonti1
- Pier Paolo Vergerio the Elder1
- Pierre Choisnet1
- Pierre Froissard1