Author
- Università de' mercanti (Siena)2
- Walter Hilton2
- Walter of Châtillon2
- William Brito2
- William of Auxerre2
- William of Conches2
- William of Malmesbury2
- William of Montlauzun2
- William of Pagula2
- Xenophon2
- knight of the Teutonic Order2
- Ælfric of Eynsham2
- 'Ali ibn al-'Abbas al-Majusi1
- Abbadia San Salvatore1
- Abbaye Saint-Martin de Plaimpied1
- Abbaye-aux-Bois1
- Abdias of Babylon1
- Abraham Faber1
- Abu al-Qasim al-Zahrawi1
- Acciaioli family1