- 711-15161
- 711-16991
- Aeneis (Virgil)1
- Alfonso I King of Asturias, 693-7561
- Alfonso III, King of Asturias and Leon, approximately 848-approximately 9101
- Alfonso V, King of Aragon, 1396-14581
- Alfonso V, King of Asturias and León, 994-1027 or 10281
- Alfonso VI, King of Castile and Leon, 1030-11091
- Alfonso VII, The Emperor, King of Castile, 1104-11571
- Alfonso VIII, King of Castile, 1155-12141
- Alfonso X, King of Castile and Leon, 1221-12841
- Allegories1
- Ana, Queen, consort of Philip II, King of Spain, 1549-15801
- Apologetic writings1
- Atlases (Geographic)1
- Autographs1
- Bargas family1
- Battle of Covadonga (Covadonga, Spain : 718)1
- Benavides family1
- Benefices, Ecclesiastical1