The Echternach Gospels were probably taken by St. Willibrord, a Northumbrian missionary, to his newly founded Echternach Abbey in Luxembourg, from which they are named.
These wars benefited attempts by Anglo-Irish missionaries (which had begun with Saint Boniface) to convert the Frisian populace to Christianity, in which Saint Willibrord largely succeeded.
When Willibrord Christianized the Netherlands (~700 AD) the church of Vlaardingen had a dependency in Harago/Hargan, currently named Harga.
Howe argued that the Anglo-Saxons, descendents of peoples who had traveled from continental Europe to settle Britain and then returned to Europe to convert their pagan forebears (Howe discusses Wilfrid, Saint Willibrord, and Saint Boniface, in connection with such poems as Beowulf and Exodus), were very conscious of their return to Europe and saw themselves as an integral part of and parallel to "the Israelite and Hebrew migration in biblical history".
Anglo-Saxon missionaries to the continent include Saints Wilfrid, Willibrord, Willehad, Lebuin, Liudger, Ewald and Suidbert.
"Early Echternach manuscript fragments with Old Irish glosses", in Willibrord, Apostel der Niederlande, Gründer der Abtei Echternach.
At first count of Salm and of Longwy, on his brother Henry II's death he inherited the county of Luxembourg, as well as providing the income for the abbeys of Saint-Maximin in Trier and Saint-Willibrord in Echternach.
In a donation dated 1 May 704 in Würzburg, his capital, Hedan, with the consent of his wife and his son Thuring and the Frankish magnates Rocco and Doda, granted the bishop Willibrord the places of Arnstadt (Arnestati), Mühlberg (Mulenberge), and Großmonra (Monhore).
Even though the village belonged to the Lordship of Waldeck, all Korweiler’s inhabitants were said to be Willibrordskinder (“Willibrord’s children”), meaning that originally, they belonged to a fief of Saint Willibrord’s Abbey in Echternach.
Around 700 AD St. Willibrord (657 – 739 AD) a Benedictine Monk from Northumbria (Great Britain) brought Christianity to Waxweiler (see also Echternach Dancing Procession) and at that time the Church was founded in the town.