- Albizzi, Costanza1
- Albums2
- Albums (Books)1
- Alchemy43
- Alchemy--Bibliography1
- Alchemy--Manuscripts7
- Alcoholism--Religious aspects1
- Alcoholism--Religious aspects--Islam1
- Alcuin, 735-804. Correspondence1
- Aldobrandini, Giovanni degli1
- Aleramo, Marquis of Monferrato, -9671
- Alessandri, Alessandro degli1
- Alessandri, Bartolomeo degli2
- Alessandri, Niccolò degli1
- Alessandri, Piero degli9
- Alessandri, Pietro degli2
- Alessandro, Pietro di1
- Alexander Balas, King of Syria, -145 B.C.1
- Alexander III, Pope, -11812
- Alexander VII, Pope, 1599-16671