| Catherine de Médicis - Queen of France and sponsor | Ordonna built it in 1574. |
| Jean Bullant - Architect assigned | Designed the hollow doric column. |
| Louis Petit de Bachaumont - Writer and Saviour | Acquire the column in 1748. |
| Alexandre Guy Pingré - Astronomy | Installed the sundial in 1764. |
| Philippe Parreno - Contemporary Artist | Created the light installation in 2021. |