Author
- Abu al-Qasim al-Zahrawi1
- Accursius1
- Achilles Statius1
- Adam Luce Dominici1
- Adam Magister1
- Adam of Aldersbach1
- Adam of Bockenfield1
- Adam of Eynsham1
- Adrian VI1
- Adriano Castellesi1
- Aelianus Tacticus1
- Agnes de Cavaciis1
- Agnes de Claustris1
- Alain Chartier1
- Alain of Lille1
- Alexander III1
- Alexander IV1
- Alexander V1
- Alexander VI1
- Alfonso de Cartagena1