- Artedo, Petrus de1
- Asceticism--Early church1
- Assumption of the Blessed Virgin Mary1
- Astrolabes1
- Astronomy--Tables1
- Attila, -4531
- Aurispa, Giovanni, approximately 1376-14591
- Averroës, 1126-1198. Talkhīs kitāb al-ʻIbārah1
- Averroës, 1126-1198. Talkhīṣ kitāb al-maqūlāt1
- Averroës, 1126-1198. Talkhīṣ madkhal Furfūriyūs1
- Baglioni, Niccolò1
- Baldini, Antonio1
- Baldo, Antonio di1
- Baldo, Vestro di1
- Balducci, Domenico1
- Balducci, Nonnina1
- Balestriere, Antonio1
- Bandinelli, Antonia1
- Bandinelli, Lisabetta1
- Bandinelli, Lodovico1