About noble density per realm, it can quickly change.
I will post what I posted in the Asylonthread as I think it kinda touches the subject here aswell.
Did anyone watch the latest episodes of History Channels Vikings?
Some scenes there was VERY fitting for Asylons current fate.
This link is to the full episode that found on youtube, to avoid spoilers just go to the 28.50 mark and enjoy that scene on the field.
https://www.youtube.com/watch?v=C1AWU6qiHHg