Author
- Albert de Löwenstein-Wertheim-Virnebourg1
- Albertanus of Brescia4
- Alberto Cattani1
- Albertus Magnus9
- Albertus de Saxonia1
- Albrecht von Bonstetten1
- Albrecht von Eyb1
- Albrecht von Pfalz-Mosbach1
- Alcuin5
- Aldobrandino da Siena2
- Alejo Salgado Correa1
- Alessandro Farnese1
- Alessandro Piccolomini2
- Alessandro da Sassoferrato1
- Alexander Bonini1
- Alexander III1
- Alexander IV1
- Alexander Strange1
- Alexander V1
- Alexander VI3