- Andrea, Piero di1
- Andrea, Pietro di1
- Andreucci, Bartolomeo1
- Andrew, Apostle, Saint1
- Andria (Terence)1
- Anecdotes1
- Angeli, Niccolò, 1448-1
- Angels1
- Angels--Christianity1
- Angels--History of doctrines1
- Angeri, Ambrogio1
- Animals1
- Anjou dynasty, 1268-14421
- Annibale, di Capua, approximately 1544-15951
- Anselm, Saint, Archbishop of Canterbury, 1033-11091
- Antella, Francesco dell'1
- Anthony, of Egypt, Saint, approximately 250-355 or 3561
- Anti-Catholicism1
- Anti-clericalism1
- Anticlaudianus (Alanus, de Insulis)1