Author
- Abbaye Saint-Martin de Plaimpied1
- Adam of Eynsham1
- Aelius Donatus1
- Alain of Lille1
- Albert Schultens1
- Albertus Magnus1
- Albertus de Saxonia1
- Alcuin1
- Ambrosiaster1
- Andreas Raumburger1
- Andrew Welch1
- Antoine Vincent1
- Antonio Gazio1
- Antonio d'Azario1
- Antonio de Nebrija1
- António Vieira1
- Arnulf of Orléans1
- Avicenna1
- Bartholomew of San Concordio1
- Bartolomeu Velho1