The story of Hervor is detailed in Hervarar saga ok Heiðreks (The Saga of Hervör and Heidrek). The name of Hervor's mother is cited only once, in a poem called The Waking of Angantýr.
Hervor's mother varies between surviving manuscripts of the saga. In some she is named Sváfu, while in others she is named Tófu, or left un-named entirely. She is described as the daughter of the jarl Bjarmar.