Heimskringla Lappish Magic

Vanlandi was the name of Sveigðir’s son, who took power after him and
ruled over the Uppsala wealth. He was a great warrior, and travelled far and
wide. He accepted winter quarters in Lappland with Snjár inn gamli (the
Old), and married his daughter Drífa there. But in the spring he left, and
Drífa stayed behind, and he promised to come back after an interval
of three years, but after ten years he had not come. Then Drífa sent for a
witch called Hulð, and sent Vísburr, her son with Vanlandi, to Svíþjóð.
Drífa paid Hulð to transport Vanlandi to Lappland by magic, or else to
kill him. And when the spell was cast, Vanlandi was at Uppsalir. Then he
became eager to go to Lappland, but his friends and advisors forbade him
and said that his enthusiasm must be caused by Lappish magic. Then he
started to feel heavy with sleep, and lay down to sleep. And when he had
been asleep for a short while he cried out and said that a mare was trampling
him. His people rushed up and tried to help him. But as they held his head
it trampled his legs so that they almost broke. When they held his feet it
smothered his head so that he died. The Svíar took his body, and it was
burned by the river called Skúta. His memorial stones were placed there.
So says Þjóðólfr:

6. And to visit
Vili’s brother
a witch’s spell
sent Vanlandi,
when troll-kind
trampled—
ale-night’s Hildr—
the enemy of men,
and he burned
on the bed of Skúta,
the necklace-waster
the nightmare smothered.


- Heimskringla, Ynglinga Saga, Chapter 13