Author
- Antonius Ferro1
- Antonius de Vecelli1
- Apostolic Camera1
- Archduke Ernest of Austria1
- Arles1
- Armenian Catholic Church1
- Arrigucci family1
- Ascanio Savorgnano1
- Ascanio Sforza1
- Assembly of the French clergy1
- Augustinians1
- Augustinus de Leonissa1
- Averroes1
- Bagnano family1
- Balthasar de Piscia1
- Bartholomaeus de Montagna1
- Bartholomeus de Vitellensibus de Corneto1
- Bartholomew Anglicus1
- Bartholomew of Braganca1
- Bartholomäus Mariensüss1