If I knew enough about modding I would love to add Frankia to the game. I usually make my lair there, out of the reach of vengeful lords. I am very well versed on this period in history and Frankish influence on the Anglo-Saxons, Irish and Britons was quite substantial, depending upon region. There was very close trading, religious and cultural ties, especially to the coastal Anglo-Saxon/Jutish kingdoms and quite a large degree of intermarriage among noble families. It's a shame there isn't some sort of Frankish faction but the mod is still amazing as is!!