Author
- Porcellio1
- Prayer books1
- Proclus1
- Prosper of Aquitaine1
- Pseudo-Bede1
- Pseudo-Dionysius of Halicarnassus1
- Pseudo-Eusebius of Cremona1
- Pseudo-Hegesippus1
- Pseudo-Jerome1
- Pseudo-Joachim of Fiore1
- Pseudo-Maximus the Confessor1
- Publius Papinius Statius1
- Rabanus Maurus1
- Raymond of Penyafort1
- Refael Mordekhai Malki1
- Refaʼel di Fontanella1
- Reginold of Eichstätt1
- Richard of Middleton1
- Roberto Caracciolo1
- Rocca, Antonio1