Kingdom of England unity ever since. During the reign of Æthelred the Unready (978–1016), a new wave of Danish invasions was orchestrated by Sweyn I of Denmark, culminating after a quarter-century of warfare in the Danish conquest of England in 1013. But Sweyn died on 2 February 1014, and Æthelred was restored to the throne. In 1015, Sweyn's son Cnut the Great (commonly known as Canute) launched a new invasion. The ensuing war ended with an agreement in 1016 between Canute and Æthelred's successor, Edmund Ironside, to divide England between them, but Edmund's death on 30 November of that year left England united
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