| Erech - Son of King Audren | Suspected commander of the first castle |
| Guérech - Count of Vannes (VIth century) | Other possible attribute of the first castle |
| Jehan de Châteaudérec - Owner (15th century) | Son of William, quoted in 1448 |
| François ou Jean de Kermeno - Owner (mid-16th century) | Husband of Marie de Châteaudérec |
| Hippolyte Nicolazo de Barmon - Owner-restaurant (1881–87) | Work on ditches and restoration |
| Louis Jean Népomucène Le Camus de Pontcarré - Last heir before 1794 | Adviser to Parliament, guillotine |