- 449-10661
- 500-15001
- 58 B.C.-1789 A.D.1
- 600-17991
- 711-16991
- Abridgments1
- Acronyms1
- Administration1
- Adrian VI, Pope, 1459-15231
- Advisory opinions (Islamic law)1
- Aggada1
- Agustín, Antonio, 1517-1586. Dialogos de medallas inscriciones y otras antiguedades1
- Akhḍarī, ʻAbd al-Raḥmān ibn Muḥammad, 1512 or 1513-1575 or 1576. Sullam al-murawniq fī al-manṭiq1
- Alba, Fernando Alvarez de Toledo, duque de, 1507-15821
- Albizzi, Costanza1
- 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