Located on the passage of the Roman road linking Bayeux (Augustodurum) to Portbail (Grannorum), this stronghold ensured the defense of the marsh and its inhabitants as part of the coastal defense plan. It was reinforced by Admiral John of Vienna during the See of Saint Saviour in 1374, and fiercely disputed between Normans and English during the English occupation of Normandy. The origins are very old, and refer to the existence of the Roman road passing at the end of the avenue and constituting the perimeter of the domain itself. The surrounding walls seem to have been built on the site of a Roman camp (the dimensions are quite similar). High walls and dry ditches that fill depending on the flooding of the marshes or triggered, 15 meters wide, 5 high, surround the entire property. The facade is decorated with balusters, and makes think of an Italian decoration type "return from Italy". On the other three sides, there are pools. The four ends of the walls are made up of square towers with scaffolding. Only access to the inside of the enclosure, an old seventeenth century drawbridge. The buildings are the base of a strong house, the house was remodeled in the seventeenth, flanked by two fifteenth turrets and two wings in square.