Author
- Innocent IV3
- Peter Cantor3
- Raymond of Penyafort3
- Albertus Magnus2
- Alfonso X of Castile and Leon2
- Avicenna2
- Bernard of Botone2
- Bernard of Clairvaux2
- Eastern Orthodox Church2
- Gerard of Cremona2
- Gratian2
- Isaac Alfasi2
- Johannes de Sacrobosco2
- Leo Archpriest2
- Priscian2
- Rabanus Maurus2
- Richard de Saint-Laurent2
- Robert Grosseteste2
- Abraham Faber1
- Abu Bakr al-Razi1