- Angulo family1
- Angulo, Alonso de1
- Animal culture1
- Animals1
- Anjou dynasty, 1268-14421
- Annals and chronicles1
- Anne (Mother of the Virgin Mary), Saint1
- Annotations23
- Annunciation to the Blessed Virgin Mary2
- Anselm, Saint, Archbishop of Canterbury, 1033-11091
- Antella, Francesco dell'1
- Anthony, of Padua, Saint, 1195-12315
- Anthony, of Padua, Saint, 1195-1231--Prayers and devotions1
- Anthropomorphic letters3
- Anti-clericalism1
- Antichrist1
- Antiphonaries326
- Antiphonaries (Service books)38
- Antiphonaries--Manuscripts1
- Antiphons (Music)6