Author
- Paschasius Radbertus2
- Petrus Aureolus2
- Pierre Danes2
- Pietro de' Crescenzi2
- Plato2
- Plutarch2
- Pseudo-Joachim of Fiore2
- Ramon Llull2
- Regiomontanus2
- Remigius of Auxerre2
- Richard of Middleton2
- Sulpicius Severus2
- Thomas of Capua2
- Tomasz II Zaremba2
- Walter of Châtillon2
- William Brito2
- William of Conches2
- William of Malmesbury2
- William of Montlauzun2
- William of Pagula2