| Cardinal Mazarin - Initial sponsor | Built the wing in 1643–48. |
| Pierre Le Muet - Wing Architect | Designs the original 144 m structure. |
| Philippe Mancini, duc de Nevers - Owner heir | Lot and modified the wing in 1683. |
| Marquise de Lambert - Hostess of the literary salon | Animates an influential circle (1698–1733). |
| John Law - Banker and purchaser | Set up the Royal Bank in 1719. |
| Henri Labrouste - Destructive/transforming architect | Rase almost entirely the hotel in 1869. |