Keywords
- 1309-13781
- 711-15161
- Albigenses1
- Alfonso X, King of Castile and Leon, 1221-12841
- Amelius, Martyr1
- Amicus, Martyr1
- Annotations1
- Arithmetic1
- Art1
- Asceticism1
- Astrolabes1
- Astronomical instruments1
- Astronomy1
- Astronomy, Medieval1
- Bible. John1
- Bulls, Papal1
- Catholic Church. Archdiocese of Siena (Italy)1
- Christian hagiography1
- Christian heresies1
- Christian heresies--Middle Ages1