Author
- Otto of Passau1
- Patrick Graham, 1st Lord Graham1
- Pedro Pizarro1
- Pedro de Menezes, 1st Count of Vila Real1
- Pedro de Valencia1
- Pepo d'Antonio di Lando Degli Albizzi1
- Pero Fernández de Matanco1
- Petrarch1
- Petrus Apianus1
- Philip II of Spain1
- Philipp Melanchthon1
- Pius II1
- Poggio Bracciolini1
- Pope1
- Ptolemy1
- Qutb al-Din al-Shirazi1
- Rajab ʻAlī Beg Surūr1
- Ranieri Farnese1
- Richard Bolter1
- Robert Reade1