1. He thereby became the Bretwalda , or high king of Britain. 2. At R�dwald's death in around 624, Edwin replaced him as Bretwalda . 3. In the early 7th century East Anglia was Bretwalda , the most powerful king in England. 4. Ceawlin was a king of Wessex and the second Bretwalda , or overlord of all Britain. 5. The Bretwalda concept is taken as evidence of a number of early Anglo-Saxon elite families. 6. The concept of Bretwalda originates in Bede's comment on who held the Imperium of Britain. 7. In the 9th-century " Anglo-Saxon Chronicle " he is referred to as a Bretwalda . 8. The Bretwalda concept is taken as evidence for a presence of a number of early Anglo-Saxon elite families. 9. During the period of the reigns from Egbert to Alfred the Great, the kings of Wessex emerged as Bretwalda , unifying the country. 10. *Apart from the comments about the " bretwalda " tag, the article rather takes for granted that the reader understands how overlordship worked.