| Paul de Salvador - Sponsor | Dean of the Rota Court. |
| Jean Péru - Architect and arbitrator | Supervised the construction site and validated the works. |
| Jean-Baptiste Franque - Entrepreneur-architect | Realized the suspended staircase in 1713. |
| Antoine d’Allemand - Architect | Designs the stairs. |
| Louis Rochas - Architect | Collaborated in design. |
| Charles Giraud et Guillaume Poussin - Lockers | Authors of the iron railing (1711). |
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