| Saint Théodard - Founder and first saint of the Abbey | Death in 893, canonized after miracles. |
| Ancelin - Abbé de Montauriol in the 12th century | Obtained half of Montauban in 1144. |
| Raymond d’Azémard - Abbé during the Albige crusade | Supported Simon de Monfort, dead imprisoned. |
| Bertrand Ier du Puy - First Bishop of Montauban | Last abbot of Saint-Théodard in 1317. |
| Alphonse Jourdain - Count of Toulouse | Fonda Montauban in 1144 on stoned land. |
| Jean XXII - Pope in 1317 | Created the diocese of Montauban. |