Sweyn Forkbeard all England in 1016, following the deaths of Æthelred and his son Edmund Ironside; he succeeded his brother as King of Denmark in 1019 and eventually also ruled Norway, parts of Sweden, Pomerania, and Schleswig. Cnut and his sons, Harold Harefoot and Harthacnut, ruled England over a combined 26-year period (1016–1042). After Harthacnut's death, the English throne reverted to the House of Wessex under Æthelred's younger son Edward the Confessor (reigned 1042–1066). Sweyn's daughter, Estrid Svendsdatter, was the mother of King Sweyn II of Denmark. Her descendants continue to reign in Denmark to this day. One of them, Margaret of
Æthelstan Half-King brother Ælfstan became Ealdorman of some parts of Mercia at about the same time and both of them may have participated in king Æthelstan's invasion of Scotland in 934. His other brothers, Eadric and Æthelwald, were witnessing charters as Ealdormen by 940. Æthelstan and his family were supporters of the monastic reforms of Saint Dunstan which introduced the Benedictine rule to Glastonbury. Both Glastonbury, and Abingdon Abbey, were endowed by Æthelstan. Æthelstan's wife was named Ælfwynn. Her family came from the east Midlands. She was foster-mother of King Edgar of England. Ælfwynn's lands would later endow Ramsey Abbey, refounded by