- Nicomachean ethics (Aristotle)1
- Nobility--Genealogy1
- Organon (Aristotle)1
- Ospedale degli Innocenti (Florence, Italy)1
- Otto I, Holy Roman Emperor, 912-9731
- Pablo de Santa Maria, Bishop of Burgos, approximately 1351-14351
- Paganelli, Roberto1
- Papacy1
- Passover--Liturgy1
- Paul V, Pope, 1552-16211
- Pazzi Conspiracy (1478)1
- Personal correspondence1
- Philip III, King of Spain, 1578-16211
- Pictorial works1
- Pidyon shevuyim1
- Pius V, Pope, 1504-15721
- Piyutim1
- Planets--Religious aspects--Judaism1
- Poland--Gdańsk1
- Poland--Ożarów1