Author
- Al-Qastallani1
- Alain Chartier1
- Albertanus of Brescia1
- Alberto Cattani1
- Albrecht von Eyb1
- Alcuin1
- Alexander V1
- Alexander VI1
- Alfnāry1
- Alfonso de Cartagena1
- Alfonso de Palencia1
- Alisa of Bastogne, active 15th century1
- Alṭaaāʼī1
- Andrea Amadio1
- Andreas de Escobar1
- Angelus Callimachus de Monteviridi1
- Anselm of Canterbury1
- Antonius Ferro1
- Antonius of Vercelli1
- Arles1