Æthelred of Wessex of Mercia, appealed to him for help against the Vikings. Æthelred and his brother, the future Alfred the Great, led a West Saxon army to Nottingham, but there was no decisive battle, and Burgred bought off the Vikings. In 874 the Vikings defeated Burgred and drove him into exile. In 870 the Vikings turned their attention to Wessex, and on 4 January 871 at the Battle of Reading, Æthelred suffered a heavy defeat. Although he was able to re-form his army in time to win a victory at the Battle of Ashdown, he suffered further defeats on 22 January at
Bagsecg Bagsecg Bagsecg (died 8 January 871), also known as Bacgsecg, was a ninth-century Viking, and one of the first to be recorded by the "Anglo-Saxon Chronicle". Both he and Healfdene were the two commanding Viking kings of the Great Army that set up camp at Reading, and invaded the Kingdom of Wessex in the winter of 870/871. The Great Army is recorded to have combated the West Saxons in several engagements in 871. One of these was the Battle of Ashdown, in which Bagsecg and five Viking earls were slain against the forces Æthelred, King of Wessex. After Bagsecg's death,