- Metaphysics1
- Metaphysics (Aristotle)1
- Midrash1
- Military art and science1
- Monasticism and religious orders--Rules1
- Monte di pietà (Florence, Italy)1
- Morocco1
- Morpurgo, Samson ben Joshua Moses, 1681-17401
- Muslims1
- Ninth of Av--Liturgy1
- Nobility--Genealogy1
- 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