By Series - Dictionary of World Biography: Middle Ages
- Moses de León
- Moses Maimonides
- Muhammad
- Murasaki Shikibu
- Nichiren
- Nicholas of Autrecourt
- Nicholas the Great
- Nicola Pisano and Giovanni Pisano
- Nizām al-Mulk
- Odoacer
- Olaf I
- Omar Khayyám
- Osman I
- Otto I
- Ouyang Xiu
- Paul of Aegina
- Pérotin
- Peter Abelard
- Petrarch
- Petrus Peregrinus de Maricourt
- Philip II
- Philip IV the Fair
- Philip the Good
- Philippe de Vitry
- Pietro d’Abano
- Pietro Lorenzetti and Ambrogio Lorenzetti
- Priscian
- Rabanus Maurus
- Rāmānuja
- Ratramnus
- Raymond Lull
- Raymond of Peñafort
- Richard I
- Richard II
- Robert Bruce
- Roger Bacon
- Rollo
- Rudolf I
- Rurik
- Saint Albertus Magnus
- Saint Anselm
- Saint Anthony of Padua
- Saint Bede the Venerable
- Saint Benedict of Nursia
- Saint Bernard of Clairvaux
- Saint Bonaventure
- Saint Boniface
- Saint Catherine of Siena
- Saint Cyril and Saint Methodius
- Saint Dominic
