Great Heathen Army Anglia and spent the winter of 869–70 at Thetford. There was no peace agreement between the East Anglians and the Vikings this time. When the local king Edmund fought against the invaders, he was captured and killed. In 871, the Great Summer Army arrived from Scandinavia, led by Bagsecg. The reinforced Viking army turned its attention to Wessex, but the West Saxons, led by King Æthelred's brother Alfred, defeated them on 8 January 871 at the Battle of Ashdown, slaying Bagsecg in the process. Three months later, Æthelred died and was succeeded by Alfred (later known as Alfred the Great),
Battle of Ashdown Wessex, preferring easier targets. 'Æscesdūn' or Ashdown is generally thought to be an ancient name for the whole of the Berkshire Downs. It is not known exactly where the two armies met, though it was around a lone thorn tree. Thorn Down at Compton, near East Ilsley — meaning "Place of Conflict" — is therefore a popular contender. Modern investigation suggests a site on the Ridgeway between Aldworth and the Astons. Victorian theory states that Alfred’s men gathered at the valley-fort now called Alfred's Castle near Ashdown House at Ashbury. Ethelred’s troops had taken up position nearby, at Hardwell Camp,