| Domitien - Roman Emperor | Probable rule of construction. |
| Vespasien - Roman Emperor | Initial construction hypothesis during his reign. |
| Arcisse de Caumont - Archaeologist (19th century) | Studyed cellars and structures. |
| Alexandre Du Mège - Archaeologist (19th century) | Author of a study on the amphitheatre. |
| Albert Grenier - Archaeologist (XX century) | Described the 72 arcades of the monument. |
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