- Patrizi, Francesco, 1275-13281
- Patronage, Ecclesiastical1
- Paul, the Hermit, Saint, -approximately 3411
- Pazzi Conspiracy (1478)1
- Pazzi, Antonio de'1
- Pazzi, Piero de'1
- Pecia1
- Pentecost1
- Perini, Francesco, 1811-18831
- Pero, Antonio del1
- Pero, Gaspero del1
- Perocti, Maruccio1
- Personal correspondence1
- Peter Lombard, Bishop of Paris, approximately 1100-1160. Sententiarum libri II1
- Peter, the Apostle, Saint1
- Petrini, Mattea1
- Petronibus, Agabitus de1
- Petronibus, Ludovicus Salimbeni de1
- Petronibus, Petronius Caterini de1
- Petronibus, Petronius de1