Great start!
The Vortigern incident is really a great luck, looking forward how it will come out. In my campaigns bribed/adopted FMs never had any children, but maybe that was just bad luck on my part. I am curious how your celto-molossian dynasty would fare.
BTW it might be nice to change your faction color a bit - there is lot of green shades in that area!
Anyway, good lucj with your campaign and story - I will be following it!