Battle of Meretun
The Battle of Meretun between a West Saxon army led by King Æthelred and his brother, the future King Alfred the Great, and a Viking army took place on 22 March 871 at an unknown location in Wessex, probably in one of the modern counties of Dorset, Hampshire, or Wiltshire.
The battle
According to the manuscript C of the Anglo-Saxon Chronicle:The battle is dated by the death of Heahmund, Bishop of Sherborne. His feast day is listed in the English calendar of saints as 22 March, indicating that he died on that date.