Olaf the Glorious A Story of the Viking Age by Leighton, Robert, -1934

Olaf took possession of many of the treasures of the temple, and then razed the building to the ground. And none of the bonders dared to oppose him. After the death of Ironbeard they had no leader bold enough to encounter the king and his men. So the end of it was that they all forsook their heathenish customs and yielded to the king's demands that they should take christening.

After this time King Olaf had no more trouble in Thrandheim, and in the whole of Norway no man dared to speak a word against the faith of Christ. In all places where the temples had been destroyed, the king had Christian churches built. He instituted monasteries throughout the land, governed by bishops and abbots brought over from Rome and Canterbury. From these monasteries many missionaries were sent out into the remoter parts of the country to preach the gospel and to hold the people firmly to the faith. Never again, so long as King Olaf lived, did the Norwegians attempt to return to paganism, and after his death his good work was taken up by his godson and namesake, Olaf the Saint.

CHAPTER XVII: SIGRID THE HAUGHTY.

Now, although the peasants of Thrandheim yielded to King Olaf in the matter of their faith and the forms of their religious ceremonies, yet they were none the less enraged against him on account of the destruction of their beautiful temple and the slaying of Iron Skeggi. This man had been a great chief among them, much honoured for his bodily strength, for his wealth, and for his spirit of independence. Some of his nearer kin had even looked upon the possibility of his being a successor to the great Earl Hakon, and accordingly they regarded Olaf Triggvison as an interloper, who had come to spoil all their hopes of worldly advancement. When their favourite was slain they therefore cast about to find some pretext for either picking a quarrel with King Olaf or of forcing him to make some atonement for the wrong that he was supposed to have done them. And then they thought of Ironbeard's daughter, Gudrun, and of what a good thing it would be for them if the king could be made to wed her. So on a certain day they took Gudrun to where King Olaf was and made their proposals to him.

King Olaf looked at the girl and thought her very fair of feature. Her hair was black as charred wood, and her cheeks were rosy red; but there was an evil glance in her dark eyes that mispleased him. Yet he saw that it was good that there should be a queen in Norway, and urged by his bishop, he allowed himself to be betrothed to Gudrun. It was arranged that they should be wedded at the next yuletide.