- Abbazia di Santa Giustina (Padua, Italy)1
- Abbazia di Santo Stefano (Pistoia, Italy)1
- Abridgments1
- Account books1
- Achilles (Mythological character)1
- Actions and defenses1
- Agamemnon, King of Mycenae (Mythological character)1
- Agriculture--Economic aspects1
- Albertus de Fontanella1
- Alchemy1
- Aldobrandini, Giovanni degli1
- Alessandri, Bartolomeo degli1
- Alessandri, Piero degli1
- Altoviti, Bartolomea1
- Amadori, Lorenzo1
- Amedei, Bartolomeo1
- Andrea, Antonio di1
- Andrea, Fabiano di1
- Angeli, Niccolò, 1448-1
- Annals and chronicles1