Author
- Podestà of Monterubbiano (Italy)1
- Podestà of Monticchiello (Italy)1
- Podestà of Perugia1
- Polo, Marco, 1254-1323?1
- Pseudo-Augustine1
- Pseudo-Dionysius the Areopagite1
- Pseudo-Hegesippus1
- Raginaldus Collus Rubeus1
- Raimondo Marliani1
- Ranuccio Farnese1
- Rapolano Terme1
- Raymond of Penyafort1
- Ressani family1
- Richard Bolter1
- Richard Burdet1
- Richard Nykke1
- Richard Ward1
- Richard de Geveldale1
- Rodrigo Sánchez de Arévalo1
- Roger Bigod, 2nd Earl of Norfolk1