Author
- Thomas Aquinas2
- Abd al-Nabī ibn Abī Bakr Kurdī1
- Accademia degli Umoristi1
- Aelianus Tacticus1
- Ahmad al-Buni1
- Ahmed al-Tijani1
- Al-Baghawi1
- Al-Maqrizi1
- Al-Tughrai1
- Alain Chartier1
- Albertus Magnus1
- Alexander III1
- Alfonso de Cartagena1
- Ali ibn Mohammed al-Jurjani1
- Angelus Callimachus de Monteviridi1
- Anthonius Charrcon1
- Anton Francesco Doni1
- Antoninus of Florence1
- Antonio dalle Conchelle1
- Armenian Catholic Church1