Author
- Podestà of Perugia1
- Porcellio1
- Prince-Bishopric of Toul1
- Priori (Florence)1
- Priscian1
- Pseudo Bernard of Clairvaux1
- Pseudo-Augustine1
- Pseudo-Bonaventure1
- Pseudo-Dionysius of Halicarnassus1
- Pseudo-Seneca1
- Qaitbay1
- Ramon Llull1
- Rashid-al-Din Hamadani1
- Raymond of Penyafort1
- Raymond of Sabunde1
- Regiomontanus1
- Reynoldus Romanus1
- Richard de Fournival1
- Robert de Saint-Martin1
- Roberto Caracciolo1