Battle of Englefield
871 CE.
Shown on the map at 51.444°, -1.100°.
The Battle of Englefield was a West Saxon victory against a Danish Viking army on about 31 December 870 at Englefield, near Reading in Berkshire. It was the first of a series of battles that took place following an invasion of Wessex by the Danish army in December 870. By 870, the Vikings had conquered two of the four Anglo-Saxon kingdoms, Northumbria and East Anglia. At the end of 870 they launched an attempt to conquer Wessex and marched from East Anglia to Reading, arriving on about 28 December. Three days later they sent out a large party under two earls to forage and reconnoitre, and it was met at Englefield by an army of local levies under the command of Æthelwulf, Ealdorman of Berkshire. After one of the earls was killed and a large part of the Danish army was overthrown, the Viking force broke and ran. The victory was short-lived. Four days later, the main West Saxon army, led by King Ethelred and his brother, the future King Alfred the Great, attacked the main Danish encampment at Reading and were bloodily repulsed in the Battle of Reading. Among the many dead of both sides was Æthelwulf.
Text from the Wikipedia article Battle of Englefield, licensed CC BY-SA 4.0.