- Neoplatonism1
- Newton, Isaac, 1642-1727--Manuscripts1
- Nicholas V, Pope, 1397-14551
- Nicholas, of Dinkelsbühl, approximately 1360-14331
- Nicolas d'Orbelles1
- Noah (Biblical figure)1
- Nobility of character1
- Norbert, of Xanten, Saint, approximately 1080-11341
- Northern Europe1
- Notaries (Canon law)1
- Nuns1
- Obligations (Law)1
- Obstetrics1
- Occasional poems1
- Occasional verse1
- Odes1
- Odes, Latin (Medieval and modern)1
- Odilo, Saint, Abbot of Cluny, 962-1048 or 10491
- Odo, Saint, Abbot of Cluny, approximately 879-9421
- On the generation of animals (Aristotle)1