A celebrated philosopher and teacher of the 12th-Century who becomes known for his application of logic to theology. His controversial relationship with Heloise and subsequent personal ordeals are pivotal aspects of his life.

The abbot of Cluny who intervenes on Abelard’s behalf with Pope Innocent II amid accusations of heresy. He is noted for his diplomatic exchanges with Heloise.

A Cistercian abbot who opposes Abelard’s theological views, accusing him of heresy. His influence and opposition play a significant role in Abelard’s condemnation.

The pope who initially confirms Heloise as an abbess and later condemns Abelard for heresy following St. Bernard's persuasion. His papacy is marked by a schism and internal church conflict.

Heloise’s uncle and guardian, a canon who hires Abelard as her tutor. He disapproves of Heloise’s relationship with Abelard upon discovering it and seeks retribution.

Abelard's teacher at Notre Dame, with whom he clashes over philosophical teachings. He becomes a significant intellectual rival to Abelard.

A renowned theologian from whom Abelard seeks to learn, but their teacher-student relationship deteriorates due to professional jealousy. Abelard criticizes Anselm's teaching methods and begins independent lectures.

The abbot of St. Denis who comes into conflict with Abelard over theological matters and expels Heloise from Argenteuil. His actions significantly impact both Abelard’s and Heloise’s lives.

A noble who provides refuge to Abelard during his exile. He acts as a protector during Abelard’s conflict with Abbot Suger.

Rivals of Abelard who study alongside him under Anselm. They lead the charge against Abelard at the Council of Soissons resulting in the burning of his work.