Author
- Porphyry1
- 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
- Raymond of Penyafort1
- Reginold of Eichstätt1
- Richard of Middleton1
- Roberto Caracciolo1
- Rocca, Antonio1
- Rutilius Taurus Aemilianus Palladius1
- Santa Maria Nuova Hospital1
- Sebastian of Naples1
- Sextus the Pythagorean1
- Simon de Lenis1