Edmund I of the Midlands, Northumbria, and Strathclyde (the last of which was ceded to Malcolm I of Scotland). Edmund was assassinated after six-and-a-half years as king, while attending Mass in Pucklechurch, Gloucestershire. He was initially succeeded by his brother Eadred, but his two sons – Eadwig and Edgar the Peaceful – both later came to the throne. Edmund came to the throne as the son of Edward the Elder, and therefore the grandson of Alfred the Great, great-grandson of Æthelwulf of Wessex and great-great grandson of Egbert of Wessex, who was the first of the house of Wessex to start dominating
Alfred the Great the River Lea, follow the Lea to its source (near Luton), from there extend in a straight line to Bedford, and from Bedford follow the River Ouse to Watling Street. In other words, Alfred succeeded to Ceolwulf's kingdom consisting of western Mercia, and Guthrum incorporated the eastern part of Mercia into an enlarged kingdom of East Anglia (henceforward known as the Danelaw). By terms of the treaty, moreover, Alfred was to have control over the Mercian city of London and its mints—at least for the time being. The disposition of Essex, held by West Saxon kings since the days of