Keywords
- Albizzi, Costanza1
- Aleramo, Marquis of Monferrato, -9671
- Alexander III, Pope, -11811
- Alfonso V, King of Aragon, 1396-14581
- Alliata family1
- Almanach perpetuum celestium motuum (Zacuto, Abraham ben Samuel)1
- Altoviti, Bartolomea1
- Angels1
- Annals and chronicles1
- Aqueducts1
- Architecture--Orders1
- Aristotle1
- Arithmetic--Study and teaching1
- Armorial bindings1
- Armorial bookplates1
- Armorial stamps1
- Arrighi family1
- Arrigucci family1
- Arrigucci, Caterina1
- Arrigucci, Luigi1