- Actions and defenses1
- Adventure stories, Spanish1
- Alfonso I King of Asturias, 693-7561
- Alfonso III, King of Asturias and Leon, approximately 848-approximately 9101
- 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, 1221-12842
- Allegories1
- Alphabets1
- America1
- Ana, Queen, consort of Philip II, King of Spain, 1549-15801
- Annals and chronicles1
- Annunciation to the Blessed Virgin Mary1
- Anthologies1
- Antiphonaries3
- Antiphonaries (Service books)1
- Arabic poetry1
- Aragon (Spain). Cortes1