Author
- William Langland2
- Adam of Eynsham1
- Alain of Lille1
- Albrecht von Pfalz-Mosbach1
- Alcuin1
- Alfonso X of Castile and Leon1
- Alonso Bello1
- Alvar Goncalez el Moxo1
- Ambrosiaster1
- Andrew Welch1
- Antonio Lopez Bulhão1
- Antonio d'Azario1
- Arnulf of Orléans1
- Avicenna1
- Bartholomew Anglicus1
- Bartholomew of San Concordio1
- Bartolomeo Olives1
- Bartolomeu Velho1
- Boniface VIII1
- Byland Abbey1