Wessex - The Hegemony of Wessex and The Viking Raids

The Hegemony of Wessex and The Viking Raids

In 802 the fortunes of Wessex were transformed by the accession of Egbert who came from a cadet branch of the ruling dynasty that claimed descent from Ine's brother Ingild. With his accession the throne became firmly established in the hands of a single lineage. Early in his reign he conducted two campaigns against the "West Welsh", first in 813 and then again at Gafulford in 825. During the course of these campaigns he conquered the western Britons still in Devon and reduced those beyond the River Tamar, now Cornwall, to the status of a vassal. In 825 or 826 he overturned the political order of England by decisively defeating King Beornwulf of Mercia at Ellendun and seizing control of Surrey, Sussex, Kent and Essex from the Mercians, while with his help East Anglia broke away from Mercian control. In 829 he conquered Mercia, driving its King Wiglaf into exile, and secured acknowledgment of his overlordship from the king of Northumbria. He thereby became the Bretwalda, or high king of Britain. This position of dominance was short-lived, as Wiglaf returned and restored Mercian independence in 830, but the expansion of Wessex across south-eastern England proved permanent.

Egbert's later years saw the beginning of Danish Viking raids on Wessex, which occurred frequently from 835 onwards. In 851 a huge Danish army, said to have been carried on 350 ships, arrived in the Thames estuary. Having defeated King Beorhtwulf of Mercia in battle, the Danes moved on to invade Wessex, but were decisively crushed by Egbert's son and successor King Aethelwulf in the exceptionally bloody Battle of Aclea. This victory postponed Danish conquests in England for fifteen years, but raids on Wessex continued.

In 855-6 Aethelwulf went on pilgrimage to Rome and his eldest surviving son Aethelbald took advantage of his absence to seize his father's throne. On his return, Aethelwulf agreed to divide the kingdom with his son to avoid bloodshed, ruling the new territories in the east while Aethelbald held the old heartland in the west. Aethelwulf was succeeded by each of his four surviving sons ruling one after another: the rebellious Aethelbald, then Ethelbert, who had previously inherited the eastern territories from his father and who reunited the kingdom on Aethelbald's death, then Aethelred, and finally Alfred the Great. This occurred because the first two brothers died in wars with the Danes without issue, while Aethelred's sons were too young to rule when their father died.