| Mikołaj Szczęsny Potocki - Polish Count, Sponsor | Owner and processor of the hotel. |
| Jules Reboul - Architect | Reconstructed the hotel between 1878-1884. |
| Grzegorz Potocki - Polish Count, first owner | Acquiert the hotel in 1867. |
| Jacques-Émile Ruhlmann - Decorator | Fits art deco interiors. |
| Jean-Louis Renaud - Initial architect | Designed the hotel in 1857. |