Author
- Arles1
- Arnaldus de Villa Nova1
- Arnulf of Bohéries1
- Arrigucci family1
- Ascanio Savorgnano1
- Ascanio Sforza1
- Augustinians1
- Augustinus de Leonissa1
- Averroes1
- Avraham ben Tamim1
- Aḥmad ibn Ḥusayn Ibn al Qunfudh1
- Aṅgiras1
- Baba1
- Bagnano family1
- Baldinus Ceccharini1
- Balthasar de Piscia1
- Bartholomaeus de Montagna1
- Bartholomeus de Vitellensibus de Corneto1
- Bartholomew of Braganca1
- Bartholomäus Mariensüss1