| Jean de Bonnefons - Military engineer | Manufacturer of the first fort (1624-1627). |
| Cardinal de Richelieu - Minister of Louis XIII | Order the recovery of the fort in 1637. |
| Vauban - Military engineer | Proposes unimplemented reinforcements. |
| Bénigne Dauvergne de Saint-Mars - Governor of the Fort (1687) | Keep the man in the iron mask. |
| Antoine Niquet - Director of Fortifications | Write a project for Vauban (1692). |
| Marquis de Jouffroy d’Abbans - Prisoner (1772-1773) | Invents the pyroscaphe during his detention. |