| Seigneurs de Goëlo - Potential sponsors | Local noble family influential in the Middle Ages. |
| Artisans tailleurs de pierre - Anonymous creators | Sculptors trained in monastic workshops. |
| Confréries religieuses - Financers and protectors | Lay groups dedicated to the maintenance of holy places. |
| Chouans - Users during the Revolution | British Royalists opposed the Republic. |
| Associations patrimoniales locales - Actors of preservation | Volunteers and experts involved in its restoration. |