Danes in the north. In the winter of 1013, Ethelred was forced into exile in Normandy. After London had finally submitted to him, Sweyn was accepted as king by Christmas 1013; however, he reigned for only five weeks. He died at, or near, Gainsborough on 2 February 1014. At Sweyn's death, Ethelred was able to return from exile and resume his reign. Uhtred, along with many others, transferred his allegiance back to Ethelred, on his return. Uhtred also married Ethelred’s daughter Ælfgifu about this time. Death In 1016 Uhtred campaigned with Ethelred's son Edmund Ironside in Cheshire and the surrounding shires. While Uhtred was away from his lands, Sweyn's son, Cnut, invaded Yorkshire. Cnut's forces were too strong for Uhtred to fight, and so Uhtred did homage to him as King of England. Uhtred was summoned to a peace meeting with Cnut, and on the way there, he and forty of his men were murdered by Thurbrand the Hold at Wighill with the connivance of Cnut. Uhtred was succeeded in Bernicia by his brother Eadwulf Cudel. Cnut made the Norwegian, Eric of Hlathir, ealdorman ("earl" in Scandinavian terms) in southern Northumbria. Marriages and issue Uhtred married three times, each marriage produced children. His first marriage, about 995, was to Ecgfrida, daughter of Bishop Aldhun of Durham. He repudiated her before 1006, but not before they had one son: Ealdred, Earl of Northumbria, died 1038. Second, Uhtred married Sige, daughter of Styr Ulfsson of York, about 1004. A condition of this marriage was that Uhtred kill Styr's enemy Thurbrand. This did not occur but, they had two children before they separated circa 1006: Eadulf (Eadwulf), became Earl of Northumbria after his brother Ealdred, died 1041. Gospatric, father or grandfather of Eadulf Rus. Third, and last, Uhtred married Ælfgifu, daughter of King Æthelred the Unready. They had a daughter: Ealdgyth, ancestress of the Earls of Dunbar; she married Maldred, called son of 'thegn Crínán' by De Obsessione Dunelmi (possibly identical to Crínán of Dunkeld, thus making Maldred brother of Duncan I of Scotland, but see Aird for modern doubts). Descendants The killing of Uhtred by Thurbrand the Hold started a blood feud that lasted for many years and is the subject of the historical work, De obsessione Dunelmi. Uhtred's son Ealdred subsequently avenged his father by killing Thurbrand, but Ealdred in turn was killed by Thurbrand's son, Carl. Ealdred's vengeance had to