Author
- Omar Khayyám1
- Order of the Argonauts of Saint Nicholas1
- Paul of Pergula1
- Petrus de Monastero1
- Pier Francesco Portinari1
- Piero de Ricci1
- Pierre Bersuire1
- Pietro Paolo Muscarello1
- Podestà of Monterubbiano (Italy)1
- Podestà of Perugia1
- Porcellio1
- Prince-Bishopric of Toul1
- Pseudo-Augustine1
- Ptolemaeus Tancredius1
- Qadi Ayyad1
- Qāḍī Zāda al-Rūmī1
- Rajab ʻAlī Beg Surūr1
- Raymond of Sabunde1
- Renchius, Henricus1
- Roman Catholic Diocese of Zaragoza1