Author
- Aldobrandino da Siena1
- Alessandro Piccolomini1
- Alexander VI1
- Alfnāry1
- Alfonso de Cartagena1
- Alfonso de Palencia1
- Ali Ibn Ibrahim Qomi1
- Ali bin al Mugrab Al Uyuni1
- Ali ibn Maymun1
- Alkalantary1
- Almaghnīsāwy1
- Alsaafīry1
- Altaaājy1
- Alulphe of Tournai1
- Amaracandrasūri1
- Amaru1
- Ambrosiaster1
- Amīr Kātib ibn Amīr ʻUmar Itqānī1
- Ananta Bhaṭṭa1
- Anantabhaṭṭa1