Author
- Philagathus of Cerami1
- Philip the Bold1
- Pierre Bersuire1
- Pietro Barozzi1
- Pius III1
- Platonic Academy1
- Pliny the Elder1
- Pope1
- Priscian1
- Pseudo-Aristotle1
- Pseudo-Cicero1
- Pseudo-Eusebius of Cremona1
- Pseudo-Jerome1
- Qadi Ayyad1
- Qaṣabī, Muḥammad ʻUmar1
- Qutb al-Din Razi1
- Qāḍī Zāda al-Rūmī1
- Ramon Llull1
- Rashid-al-Din Hamadani1
- Remigio dei Girolami1