- Pastoral poetry1
- Patrick, Saint, 373?-463?1
- Patriotism1
- Patrizi, Francesco, 1275-13281
- Patronage, Ecclesiastical1
- Paul III, Pope, 1468-15491
- Paul, the Deacon, approximately 720-799?1
- Peace of Westphalia (1648)1
- Pecia1
- Pedro IV, King of Aragon, 1319?-13871
- Pego, Jacobus de1
- Penmanship manuals1
- Perfection--Religious aspects--Catholic Church1
- Perpetual calendars1
- Persecution1
- Persecution--Early church1
- Personal correspondence1
- Peru1
- Petrus, de Herenthals, 1322-1390 or 13911
- Pharmacognosy1