Author
- Abū ʻAbd al-Raḥmān Yaʻqūb ibn Ayyūb Mawāhidī1
- Acciaioli family1
- Al-Biruni1
- Al-Khazini1
- Al-Mawardi1
- Al-Mubashshir ibn Fātik1
- Alain of Lille1
- Alcuin1
- Aldobrandino da Siena1
- Ambrose1
- Andrea Goussen1
- Arles1
- Arnaldus de Villa Nova1
- Arnulf of Bohéries1
- Augustinus de Leonissa1
- Baldinus Ceccharini1
- Bartholomeus de Vitellensibus de Corneto1
- Bartholomew Anglicus1
- Benoît de Sainte-Maure1
- Bernardo Canal1