“Rögnvald Réttilbeini owned Hadaland; he learned witchcraft, and became a seid-man. King Harald disliked seid-men. In Hördaland there was a seid-man called Vitgeir; Harald sent him word to leave off seid. He answered and sang:
It does little harm
Though we the children
Of bœndr
Make seid
When Rögnvald
Réttilbeini,
The famous son of Harald,
Makes seid in Hadaland.
When Harald heard this, he sent Eirik (Blood-axe) to Uplönd; he came to Hadaland and burnt his brother Rögnveld, together with eighty seid-men, in his house; this deed was much praised” (Harald Fairhair, c. 36).