- Aeneis (Virgil)1
- Aesthetics1
- Aesthetics, Indic11
- Agama1
- Aggada2
- Aghorīs1
- Agni (Hindu deity)7
- Agnihotra (Hindu rite)11
- Agniṣṭoma (Hindu rite)3
- Agriculture--Religious aspects--Hinduism2
- Alchemy13
- Alchemy--Manuscripts7
- 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
- Allegories2