Author
- Ka'b bin Zuhayr1
- Khāṭirī, Aḥmad ibn Muḥammad1
- Leo Archpriest1
- Martin of Opava1
- Muhammad al-Shaybani1
- Muhammad ibn Ja'far al-Khara'iti1
- Muntajab al-Hamadhānī1
- Muslim ibn al-Ḥajjāj1
- Muḥammad ibn ʻAbd Allāh Iskāfī1
- Muḥammad ibn ʻAbd al-Ḥamīd Usmandī al-Samarqandī1
- Peter Lombard1
- Peter of Poitiers1
- Petrus Riga1
- Piccolomini1
- Piccolomo Oltremonti1
- Podestà of Monticchiello (Italy)1
- Ptolemy1
- Qadi Ayyad1
- Roman Catholic Archdiocese of Reims1
- Saadia Gaon1