| Grand-duc Michel Mikhaïlovitch de Russie - Financer and patron | Exiled in Cannes, he supported reconstruction. |
| Henri Ruhl - Promoter and hotelier | Chief commander of the palace. |
| Charles Dalmas - Nice architect | Co-conceptor of the building. |
| Marcellin Mayère - Cannois architect | Co-author of initial plans. |
| Casimir Reynaud - Owner and investor | Enlarged the hotel in 1912–13. |
| Tristan Auer - Interior architect | Responsible for the renovation of 2023. |
| Pierre-Louis Renou - Current Director | Named April 2024. |
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