Author
- Muḥammad ibn ʻAbd Allāh Iskāfī1
- Muḥammad ibn ʻUzayr Sijistānī1
- Petrus Comestor1
- Piccolomo Oltremonti1
- Priscian1
- Ptolemy1
- Qadi Ayyad1
- Richard Fishacre1
- Robert Grosseteste1
- Rolandino de' Passaggeri1
- Roman Catholic Archdiocese of Reims1
- Saʻīd ibn Hibat Allāh ibn al-Ḥusayn1
- Sharif Radhi1
- Shihab al-Din al-Qarafi1
- Siena1
- Tha'ālibī1
- Theobaldus Episcopus1
- William Rothwell1
- Wāḥidī Nīsābūrī1
- al-Khali1