After the death of Edmund in 869, and a winter in East Anglia, the army marched west into Mercia. The Irish Annals state that Ivar died in 873, though at least one early chronicler (Aethelweard) states that he died in the same winter as Edmund. The army returned in 874, spending 12 months at Cambridge before marching west again. In 879 they returned again, this time to settle and rule the region.
Alfred, whose resistance to the Viking invasion is a matter of histor and legend both, came to Wessex throne in 871 at the age of 22, styling himself, as did his father, "King of All England." Alfred successfully staved off all Viking attempts to take Wessex, and eventually concluded a peace with the invaders which ceded to their control most of eastern and northern England ("the Danelaw") in exchange for guarantees against further encroachment. Guthrum was acknowledged by Alfred as the Danish king of East Anglia in 878, when Guthrum converted to Christianity as part of the treaty with King Alfred (who stood at the baptism as his godfather). The Danes ruled East Anglia for 38 years, from 878 to 917, when the region was reconquered by the Anglo-Saxons under King Edward of Wessex. The reconquering of East Anglia was thorough and sure, but there continued to be sporadic Viking raids until as late as 1069, the year of the last recorded attacks on Ipswich and Norwich.
For more information, including a short chapter on the story of St. Edmund, see Sue Margeson, The Vikings in Norfolk Norwich: Norfolk Museums Service, 1997. Back to "The Subject: King Edmund"