– Nicetas Choniates
– Nicetas Dauid
– Nicolaus abbas Panormitanus
– Nicolaus Cabasilas
– Nicolaus de Cusa
– Nicolaus Gorram
– Nicolaus de Lira
– Nicolaus Papa I
– Nilus Abbas
– Nithardus
O
– Oecumenius
– Olympiodorus
– S. Optatus Mileuitanus
– Oresiesis Abbas
– Origenes
– Oseas Propheta
– Otho Frisingensis
P
– S. Pachomius
– Pacianus
– Pacificus
– Palladius
– Paschasius diaconus
– Paschasius Rathbertus
– Paulinus Aquileiensis
– S. Paulinus Nolanus
– S. Paulus apostolus
– Paulus Burgensis
– Paulus diaconus
– Paulus Middelburgius
– Paulus Orosius
– Pelagius Aluarus
– S. Petrus apostolus
– Petrus Aureolus
– Petrus ab Ancharano
– Petrus ab Alliaco
– Petrus Blesensis
– Petrus Cluniacensis
– Petrus Betrandus
– Petrus Chrysologus
– Petrus Comestor
– Petrus Damiani
– Petrus diaconus
– Petrus Lombardus
– Petrus Paludanus
– Petrus Tarantasiensi
– Philo Carpathius
– Philo Iudaeus
– Philastrius
– Photius Constantinopolitanus
– S. Polycarpus martyr
– Pomerius
– Pontius Diaconus
– Primasius
– Prochorus
– Proclus Constantinopolitanus
– Procopius Gazaeus
– S. Prosper Aquitanus
– Prudentius
R
– Rabanus Maurus
– Radulphus Flauiacensis
– Raymundus Lullius
– S. Raymundus de Pennaforti
– Remigius Antisiodorensis
– Rhegino abbas
– Richardus Armachanus
– Richardus de Mediauilla
– Richardus Victorinus
– Robertus Gaguinus
– Robertus Holkor
– Robertus Sorbona
– Rogerius de Houeden
– Ruffinus Aquileiensis