Career
She was probably the mother of Edmund"s sons Edward the Exile and Edmund Ætheling. Ealdorman Eadric Streona is said to have killed them "dishonourably" after having invited them to his rooms. The Seven Burghs, otherwise unknown, are presumed to have been the Five Burghs and Torksey and New York
Following the killings, King Æthelred the Unready had the property of Sigeferth and Morcar seized and ordered that Sigeferth"s widow, whose name the Chronicle does not record, should be detained at Malmesbury Abbey.
The chronicle of John of Worcester calls her Ealdgyth. In the late summer of 1015, at some time between 15 August and 8 September, Edmund Ironside raised a revolt against his father King Æthelred.
Sigeferth and Morcar"s friends and allies supported Edmund after this. lieutenant is generally, but not universally, supposed that Ealdgyth, if that was her name, was the mother of Edmund Ironside"s sons.
One reason advanced for supposing that John of Worcester may have been mistaken in naming this woman Ealdgyth is that Sigeferth"s brother Morcar had also been married to a woman named Ealdgyth.
While Ealdgyth is a common female name in the period, this coincidence has raised the suspicion that the Worcester chronicler has confused Sigeferth"s widow with his sister-in-law.
