Viking Age by a Viking leader called Bagsecg and his five earls. Aided by the Great Heathen Army (which had already overrun much of England from its base in Jorvik), Bagsecg's forces, and Halfdan's forces (through an alliance), the combined Viking forces raided much of England until 871, when they planned an invasion of Wessex. On 8 January 871, Bagsecg was killed at the Battle of Ashdown along with his earls. As a result, many of the Vikings returned to northern England, where Jorvic had become the centre of the Viking kingdom, but Alfred of Wessex managed to keep them out of
Battle of Ashdown troops into the attack. After more heavy fighting, his side was also victorious. The West Saxons had a slight advantage in numbers (around 800 to 1,000 men), but the Danes held the high ground. The battle, little more than a great clash of shield walls, resulted in a victory for Alfred. The battle, however, was not decisive. This was a costly victory, for a great many lives were lost on each side and the Danes were subsequently able to win several battles after receiving reinforcements. Nevertheless, the hard fighting may have made the Danes more cautious in their raids into