Eadbald was King of Kent from 616 until his death in 640. He was the son of King Æthelberht and his wife Bertha, a daughter of the Merovingian king Charibert. Æthelberht made Kent the dominant force in England during his reign and became the first Anglo-Saxon king to convert to Christianity from Anglo-Saxon paganism. Eadbald's accession was a significant setback for the growth of the church, since he retained his people's paganism and did not convert to Christianity for at least a year, and perhaps for as many as eight years. He was ultimately converted by either Laurentius or Justus, and separated from his first wife, who had been his stepmother, at the insistence of the church. Eadbald's second wife was Emma, who may have been a Frankish princess. They had two sons, Eormenred and Eorcenberht, and a daughter, Eanswith.

Æthelberht was King of Kent from about 589 until his death. The eighth-century monk Bede, in his Ecclesiastical History of the English People, lists him as the third king to hold imperium over other Anglo-Saxon kingdoms. In the late ninth century Anglo-Saxon Chronicle, he is referred to as a bretwalda, or "Britain-ruler". He was the first English king to convert to Christianity.