Bergsrå
The Bergsrå, Bergatrollet, or Bergakungen was a mythical creature of the mountain in Norse mythology.
The bergrå could be either masculine or feminine. It lived in the mountain with a court of relatives and sometimes surrounded by trolls. It was a common phenomenon in the mythology about the bergsrå to trick people into their dwellings in the mountain and to become bergtagen. These bergtagnings are usual are done by lone males and their victims tend to be women.
A typical description of such a claimed occurrence was given by Sven Andersson in 1691 when he was on trial for having sexual intercourse with a female bergrå.