Along with other forces, the Great Heathen Army then invaded Wessex, perhaps in December 870 (within a few weeks of killing Edmund) or after having spent a year pillaging and consolidating their position in East Anglia, before proceeding to attack Mercia and Northumbria.
Along with other forces, the Great Heathen Army then invaded Wessex, perhaps in December 870, which would have been within a few weeks after Edmund's death. Alternatively the Danes may have spent a year pillaging and consolidating their position in East Anglia before proceeding to attack Mercia and Northumbria.