- Accursius, glossator, approximately 1182-approximately 12601
- Acquittals1
- Aeneis (Virgil)1
- Afghanistan1
- Albizzi family1
- Alexander, the Great, 356 B.C.-323 B.C.1
- Alfonso X, King of Castile and Leon, 1221-12841
- Alfīyah (Ibn Mālik, Muḥammad ibn ʻAbd Allāh)1
- Algeria--Hippo (Extinct city)1
- Aljamía1
- Allegories1
- Almucantar1
- Amulets1
- Anecdotes1
- Animals1
- Anjou, François, duc d', 1554-15841
- Anthony, of Egypt, Saint, approximately 250-355 or 3561
- Anti-clericalism1
- Antiphonaries (Service books)1
- Antiphons (Music)1