Egbert, king of Wessex, and first king of the united Anglo-Saxons, born about 775, ascended the throne of Wessex in 800, and died about 836. The defeated rival of King Brihtric, he took refuge first at the court of Offa, king of Mercia, and afterward in France, where he was received at the court of Charlemagne, in whose armies he served three years. After the death of Brihtric in 800 he was the last remaining prince of the house of Cerdic, and was recalled and acknowledged as king by the West Saxon thanes. In 809 he commenced his career of conquest; and, successively subduing the Britons of Cornwall and the Saxons of Mercia, Kent, Essex, and Northumbria, and assuming at its request the protectorship of East Anglia, by 827 he had become the actual sovereign of the whole heptarchy, and in 828 assumed the title of king of England. In 832 the Danes landed on the isle of Sheppey, and carried off a rich booty. In 833 they disembarked at Charmouth, and defeated Egbert's forces. They landed again in 835 on the coast of Cornwall, where they formed an alliance with the Britons. Egbert encountered their united forces at Hengston hill, gained a decisive victory, punished the rebels, and drove the invaders to their ships.