| Louis Thiroux de Crosne - Intendant of the generality of Rouen | Initiator of the project in 1772 |
| Louis-Alexandre de Cessart - King's engineer | Construction manager |
| Marin-Nicolas Jadoulle - Sculptor | Author of the pediment ornaments |
| Alain Elie - Architect | Rehabilitation in 1984 for the region |
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