 Writing in the 1150s, Ailred of Rievaulx identifies her as a daughter of earl ("comes") Thored and the mother of Edmund, though he supplies no name.Ailred had been seneschal at the court of King David I of Scotland (r. 1124–53), whose mother Margaret was a great-granddaughter of Ælfgifu.Although his testimony is late, his proximity to the royal family may have given him access to genuine information.