The site of Marieux shows an evolution from the Gallo-Roman period (2nd-3rd century, perhaps even 4th century A.D.) up until the 9th-11th centuries. It features an ostentatious hierarchical organisation dominating the valley of the river Authie, on the edge of the forest of Arrouaise. Some ten pits characterize the Roman occupation. They are found within the outer limit of the villa detected to the west and the north of the excavated area. The Carolingian occupation is represented by a square enclosure and some craftsmen’s workshops (hut pits and kilns). The high quality of the artefacts (pottery and fibula) indicates a high social status. Its topographical position gives this site a strategic importance at the presumed border between the Ambiani and the Atrebates. Traduction : Margaret & Jean-Louis CADOUX