Author
- Antonius de Vecelli1
- Antonius of Vercelli1
- António Nunes Ribeiro Sanches1
- António Vieira1
- António das Chagas1
- Anubhūtisvarūpācārya2
- Anvari5
- Apadeva6
- Apostolic Camera1
- Appayya Dikshita8
- Arai Hakuseki1
- Archduke Ernest of Austria1
- Aristotle36
- Arjāsp Umīdī al-Ṭihrānī1
- Arles1
- Armenian Catholic Church3
- Arnaldus de Villa Nova6
- Arnaldus, of Brussels1
- Arnaud, Claude, active 1660-1661.1
- Arnold Goerinus1