Author
- Podestà of Monterubbiano (Italy)1
- Podestà of Monticchiello (Italy)1
- Podestà of Perugia1
- Podius, Milanutius1
- Pomponius Mela1
- Porcellio1
- Prince-Bishopric of Toul1
- Priscian1
- Pseudo-Augustine1
- Ptolemaeus Tancredius1
- Ramon Llull1
- Ranuccio Farnese1
- Rapolano Terme1
- Raymond of Penyafort1
- Raymond of Sabunde1
- Renchius, Henricus1
- Ressani family1
- Richard Burdet1
- Richard II of England1
- Roger Bigod, 2nd Earl of Norfolk1