Author
- Petrus Aureolus1
- Petrus de Braco1
- Petrus de Isolella1
- Petrus de Monastero1
- Philippus Brusserius1
- Platonic Academy1
- Podestà of Monterubbiano (Italy)1
- Podestà of Perugia1
- Podius, Milanutius1
- Pope1
- Porcellio1
- Prince-Bishopric of Toul1
- Pseudo-Augustine1
- Ptolemaeus Tancredius1
- Ramon Llull1
- Raymond of Sabunde1
- Renchius, Henricus1
- Ressani family1
- Roman Catholic Archdiocese of Mainz1
- Roman Catholic Diocese of Zaragoza1