Author
- Muḥammad ibn ʻAbd Allāh Iskāfī1
- Odo of Meung1
- Origen1
- Osbern of Gloucester1
- Papias1
- Prosper of Aquitaine1
- Pseudo-Hippocrates1
- Qadi Ayyad1
- Richard Fishacre1
- Richard of Middleton1
- Robert de Gretham1
- Roger Bigod, 2nd Earl of Norfolk1
- Rogerius1
- Roman Catholic Archdiocese of Reims1
- Saadia Gaon1
- Sayf al-Din al-Amidi1
- Sharif Radhi1
- Shelomoh ben Eliyah ha-Melamed1
- Shihab al-Din al-Qarafi1
- Stephen Langton1