Keywords
- Nuns1
- Nuti, Giovanni, 1952-1
- Oaths2
- Obligations (Law)1
- Occasional verse1
- Ochoa family1
- Octoechos (Orthodox Eastern Church)1
- Odilo, Saint, Abbot of Cluny, 962-1048 or 10491
- Odo, Saint, Abbot of Cluny, approximately 879-9421
- Offertories (Music)2
- Officium pro defunctis (Catholic Church)4
- Old age1
- On the generation of animals (Aristotle)1
- Ophthalmology1
- Oratory1
- Orden de Alcántara1
- Order of the Garter2
- Orders of knighthood and chivalry1
- Ordre de Saint-Michel1
- Origen1