| Guillaume de Fay - Lord of Mezenc | Founded Bonnefoy's Chartreuse in 1156. |
| Johanne Viale - Witness in 1506 | Mentioned as a resident of Dizonanche. |
| Famille Méjan - Owners in the XVII-15th centuries | Responsible for the work of 1642. |
| Évêque de Viviers - Religious Authority | Forced the Chartreux to rebuild. |