The Chronicle of The Kings of Norway
Part 11 - King Hakon As A Law-giver
As long as Hakon was king in Norway, there was good peace between the bondes and merchants; so that none did harm either to the life or goods of the other. Good seasons also there were, both by sea and land. King Hakon was of a remarkably cheerful disposition, clever in words, and very condescending. He was a man of great understanding also, and bestowed attention on law- giving.
He gave out the Gula-thing's laws on the advice of Thorleif Spake (the Wise); also the Frosta-thing's laws on the advice of Earl Sigurd, and of other Throndhjem men of wisdom. Eidsiva-thing laws were first established in the country by Halfdan the Black, as has before been written.