- Alchemy--Manuscripts1
- Alexander VII, Pope, 1599-16671
- 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
- Alfīyah (Ibn Mālik, Muḥammad ibn ʻAbd Allāh)7
- Alfīyah fī muṣṭalaḥ al-Ḥadīth (Suyūṭī)1
- Alfīyat al-ʻIrāqī (ʻIrāqī, ʻAbd al-Raḥīm ibn al-Ḥusayn)2
- Alids1
- Allegories2
- Almucantar1
- Altoviti, Bartolomea1
- Alī Ādila Śāha II, Sultan of Bijapur, 1638-16721
- Amulets1
- Ana, Queen, consort of Philip II, King of Spain, 1549-15801