Author
- Podestà of Monterubbiano (Italy)1
- Podestà of Perugia1
- Pope1
- Porcellio1
- Prince-Bishopric of Toul1
- Priscian1
- Prudentius1
- Pseudo Bernard of Clairvaux1
- Pseudo-Augustine1
- Pseudo-Dionysius of Halicarnassus1
- Pseudo-Joachim of Fiore1
- Pseudo-Seneca1
- Ptolemaeus Tancredius1
- Ramon Llull1
- Raymond of Penyafort1
- Raymond of Sabunde1
- Ressani family1
- Reynoldus Romanus1
- Richard de Fournival1
- Robert Ashley1