Author
- Nicolaus von Grätz1
- Paolo da Firenze1
- Pappus of Alexandria1
- Paul, of Cologne1
- Pedro de Paiva1
- Pere Rossell1
- Peter Damian1
- Peter Lange1
- Peter Lombard1
- Peter Olivi1
- Peter Stamler1
- Petrus Comestor1
- Philip II of Spain1
- Pierre Poquet1
- Pierre de Luxembourg1
- Pietro Aldobrandini1
- Pietro Marcello1
- Plato1
- Poggio Bracciolini1
- Pope1