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 the Catalaunian Plains 10, 100, 1000, and 10,000, but no real estimates of Hunnic military capacity can be determined. Their barbarian allies, however, do receive mentions at other times in other sources: in 430 A.D. The Hunnish king Octar was defeated by a force of 3000 Neckar Burgundians who would later come under Hun subjugation, and Heather estimates that both the Gepids and the Amali Goths could have each fielded a maximum of 15,000 men at the Battle of Nedao in 454. Therefore, the total Hunnic forces could have plausibly been in excess of 48,000 men. This is somewhat supported by the Chronicon