- 58 B.C.-1789 A.D.1
- 69-961
- A (The letter)1
- Abbots--Appointment, call, and election1
- Accademia degli Humoristi (Rome, Italy)1
- Accademic fiorentina1
- Acciaiuoli, Roberto, 1467-15471
- Aegidius, Saint, Abbot1
- Africa1
- Africa--Atlantic Coast1
- Agriculture--Accounting1
- Agustín, Antonio, 1517-1586. Dialogos de medallas inscriciones y otras antiguedades1
- Alba, Fernando Alvarez de Toledo, duque de, 1507-15821
- Albizzi family1
- Albizzi, Costanza1
- Alchemy--Manuscripts1
- Aleramo, Marquis of Monferrato, -9671
- Alexander III, Pope, -11811
- Alexander VII, Pope, 1599-16671
- Alfonso II, King of Naples, 1448-14951