- 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
- Algebra1
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- Anecdotes, Persian1
- Anglo-Norman dialect1
- Animals1
- Anjou, François, duc d', 1554-15841
- Anthologies1
- Antiphonaries (Service books)1
- Antiphons (Music)1
- Antiquities1
- Apocryphal Gospels1
- Apocryphal books (New Testament)1
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