Author
- Martin of Opava2
- Maurice de Sully2
- Maximus of Turin2
- Nikolaus von Dinkelsbühl2
- Oglerio di Lucedio2
- Onasander2
- Origen2
- Panormitanus2
- Paschasius Radbertus2
- Petrus Aureolus2
- Pierre Danes2
- Pietro Candido Decembrio2
- Pietro de' Crescenzi2
- Pliny the Elder2
- Prosper of Aquitaine2
- Pseudo-Jerome2
- Pseudo-Joachim of Fiore2
- Regiomontanus2
- Remigius of Auxerre2
- Richard of Middleton2