Author
- Antonius Ferro1
- Antonius Gryphius1
- Antonius Verherent1
- Antonius de Carlenis1
- Antonius de Vecelli1
- Antonius of Vercelli1
- António Nunes Ribeiro Sanches1
- António Vieira1
- António das Chagas1
- Apostolic Camera1
- Archduke Ernest of Austria1
- Arjāsp Umīdī al-Ṭihrānī1
- Arles1
- Arnaud, Claude, active 1660-1661.1
- Arnold Goerinus1
- Arnold-André Sittard1
- Arnulf of Bohéries1
- Arnulf of Lisieux1
- Arnulf of Orléans1
- Arrigucci family1