- Alfonso VII, The Emperor, King of Castile, 1104-11571
- Alfonso VIII, King of Castile, 1155-12141
- Allegory1
- Almanacs1
- Amadori, Bartolomeo1
- Amadori, Lorenzo1
- Amadori, Niccolo1
- Amulets1
- Ana, Queen, consort of Philip II, King of Spain, 1549-15801
- Anaya, Pedro1
- Animal culture1
- Annals and chronicles1
- Antiphons (Music)1
- Apologetic writings1
- Arab countries1
- Arabic language--Dictionaries--Persian--Early works to 18001
- Arabic language--Inflection1
- Arabic language--Lexicology1
- Arabic language--Metrics and rhythmics1
- Arabic language--Morphology1