Answer:
The Christianization of Scandinavia took place between the 8th and 13th centuries, when the Scandinavian kingdoms, Denmark, Norway and Sweden, established their own archdioceses, directly dependent on the Pope, in 1103, 1154 and 1164, respectively. The Lappish people remained out of this process until the eighteenth century. The conversion to Christianity of the Scandinavians required more time than in the rest of Europe. There is evidence that it was a slow process and took at least 150-200 years.Runic inscriptions of the thirteenth century in Bergen (Norway) show little Christian influence, and one of them implores a Valkyrie. During the High Middle Ages, the papacy did not manifest itself as the central Catholic authority, which allowed the development of regional variants of Christianity.
Once the process of conversion of the Viking people was completed, they no longer focused their attacks on Christian settlements and their level of ostility was considerably low compared to the rest of their history.
