Editing Normandy (section)

===Germanic invasions and settlements===
In the late 3rd century AD, Germanic raids devastated "Lugdunensis Secunda", as the modern area of Normandy was known at the time. The Romans built a system of coastal defences known as [[Saxon Shore]] on both sides of the English Channel. Coastal settlements were raided by [[Saxons|Saxon]] pirates that finally settled mainly in the [[Bessin]] region.<ref>Jean Soulat, La présence saxonne et anglo-saxonne sur le littoral de la Manche, in ''Quentovic'' : ''Environnement, archéologie, histoire'', 2010, p. 146 – 163.</ref> Modern archeology reveals their presence in different Merovingian cemeteries excavated east of Caen.<ref>Christian Pilet, ''Quelques témoignages de la présence Anglo-Saxonne dans le Calvados, Basse-Normandie (France)'', Band 13, edited by Karl Hauck, Berlin, Boston: De Gruyter, 2020, pp. 357–381.</ref> Christianity also began to enter the area during this period and Rouen already had a metropolitan bishop by the 4th century. The ecclesiastical province of Rouen was based on the frame of the Roman ''Lugdunensis Secunda'', whose limits corresponded almost exactly to the future [[duchy]] of Normandy. In 406, [[List of early Germanic peoples|Germanic tribes]] began invading from the east, followed by dispersed settlements mainly in the [[Pays de Bray]], [[Pays de Caux]] and [[Vexin]]. As early as 487, the area between the rivers [[Somme (river)|Somme]] and [[Loire]] came under the control of the [[Franks|Frankish]] lord [[Clovis I|Clovis]].