Author
- Paul the Deacon1
- Paulus Melissus1
- Pedro de Serra1
- Pere Marsili1
- Pere Rossell1
- Perets ben Yitsḥak Ghirondi1
- Pero Fernández de Matanco1
- Peter Damian1
- Peter Olivi1
- Peter of Bergamo1
- Peter of Limoges1
- Peter, Constable of Portugal1
- Petrus de Braco1
- Petrus de la Cavalleria1
- Philip IV of Spain1
- Philip Stos1
- Philip the Chancellor1
- Piccolomo Oltremonti1
- Pierre Bersuire1
- Pierre Mathieu1