Author
- Justinian I1
- Muhammad ibn Ja'far al-Khara'iti1
- Muslim ibn al-Ḥajjāj1
- Muḥammad ibn Mūsá Ḥāzimī1
- 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
- Siena1
- Tha'ālibī1
- Theobaldus Episcopus1
- William Rothwell1