Author
- Onasander2
- Peter Lombard2
- Petrus Aureolus2
- Petrus Comestor2
- Pietro Candido Decembrio2
- Pietro d'Abano2
- Pietro de' Crescenzi2
- Pius III2
- Pliny the Elder2
- Pseudo-Bonaventure2
- Pseudo-Seneca2
- Qarajah Aḥmad2
- Ramon Llull2
- Raymond of Penyafort2
- Richard of Saint Victor2
- Rodrigo Sánchez de Arévalo2
- Rutilius Taurus Aemilianus Palladius2
- Saʻīd Najm al-Dīn ʻAjamī2
- Shams ad-Din al-Fanari2
- Shams al-Dīn al-Samarqandī2