Author
- Paul of Pergula1
- Paul, of Cologne1
- Pere Marsili1
- Pere Rossell1
- Perets ben Yitsḥak Ghirondi1
- Peter Lombard1
- Petrus Alphonsi1
- Petrus Bonus1
- Petrus Comestor1
- Petrus de Braco1
- Petrus de la Cavalleria1
- Pierre Choisnet1
- Pierre Poquet1
- Pierre de Luxembourg1
- Pietro Barozzi1
- Pietro Paolo Muscarello1
- Plato1
- Platonic Academy1
- Pliny the Elder1
- Polo, Marco, 1254-1323?1