Author
- Albrecht von Bonstetten1
- Albrecht von Eyb1
- Albrecht, Graf zu Löwenstein-Wertheim-Virneburg1
- Alcuin2
- Aldobrandino da Siena2
- Alessandro Farnese1
- Alessandro Piccolomini2
- Alessandro da Sassoferrato1
- Alexander Bonini1
- Alexander III1
- Alexander IV1
- Alexander Strange1
- Alexander V1
- Alexander VI3
- Alexander of Villedieu5
- Alfonso Gondi1
- Alfonso Petrucci2
- Alfonso Spezzani1
- Alfonso X of Castile and Leon1
- Alfonso de Cartagena1