Author
- Ahmed ibn Nasir1
- Al-Khwarizmi1
- Al-Waqidi1
- Al-Zarnuji1
- Al-Ḥusayn ibn al-Ḥasan Jurjānī1
- Alain of Lille1
- Albert Schultens1
- Albertus Magnus1
- Albertus de Saxonia1
- Alcuin1
- Alfonso X of Castile and Leon1
- Alfonso de Palencia1
- Ali Qushji1
- Alonso Carrillo y Laso1
- Alshaarīshy1
- Ambrosiaster1
- Andreas Raumburger1
- Andrew Welch1
- Andrés Bernáldez1
- Anne Baker Lewis1