So the year is 586, and Ceawlin is the leader of the men of Wessex. Wessex has been expanding their holdings to the north and the west, and have been growing in power. Conversely, in the East are the men of Kent under the leadership of AEthelbehrt, who (we are told) has been ruling since he was 8 years old. But the dates are a bit dodgey. And now AEthelbert is 16 years old. Maybe? And he's growing in power. We know this because Kent is growing in wealth and are of sufficiently high status for the King to be marrying the daughter of the King of Frankia. Furthermore, he is a member of the Oiscingas, the ruling family of Kent... said to have been descended from Hengest himself.