Author
- Philip Sidney1
- Philipp Melanchthon1
- Philippus1
- Pier Francesco Portinari1
- Piero de Ricci1
- Pierre Mésenge1
- Pietro Flores1
- Pietro Lamberti1
- Pius IV1
- Podius, Milanutius1
- Principio Fabricii1
- Privy Council of the United Kingdom1
- Prudentius1
- Qasem-e Anvar1
- Qutb al-Din Razi1
- Qutb al-Din al-Shirazi1
- Qāḍī Zāda al-Rūmī1
- Ranieri Farnese1
- Ranuccio Farnese1
- Regiomontanus1