| Saint Léger - Church patron | Bishop of Autun and martyr (VIIth century). |
| Saint Maur - Presumed primitive boss | Disciple of Benoît de Nursie (VIth century). |
| Dominique Vermand - History of Art | Studyed architecture and dated construction. |
| Claude Barre - Master glass | Author of the modern triptych of the apse. |
| Philippe d'Orléans (1336-1375) - Duke and local lord | Ceda la seigneury at Longpont Abbey. |