Author
- Peter Schmieher1
- Peter of Bergamo1
- Petrus Apianus1
- Petrus Aureolus1
- Petrus Comestor1
- Petrus de Braco1
- Priscian1
- Pseudo-Aristotle1
- Pseudo-Augustine1
- Raymond of Sabunde1
- Remigio dei Girolami1
- Reynoldus Romanus1
- Roman Catholic Archdiocese of Mainz1
- Salomon Trismosin1
- Seneca1
- Simon Bredon1
- Simon of Cremona1
- Sulpicius Severus1
- Terence1
- Thomas Aquinas1