CABROCK8

Egbert (802-839) Known as the first King of All England, he was forced into exile at the court of Charlemagne, by the powerful Offa, King of Mercia. Egbert returned to England in 802 and was recognized as king of Wessex. He defeated the rival Mercians at the battle of Ellendun in 825. In 829, the Northumbrians accepted his overlordship and he was proclaimed "Bretwalda" or sole ruler of Britain. IMO and historical text!