Board Thread:News and Announcements/@comment-24398225-20150511063219/@comment-4612798-20150511075109

The experience of Empress Matilda kind of proved you couldn't have a queen regnant back then. Henry was heir presumptive between 1199 and 1207.

But I reckon it would probably ended up being a being a proxy civil war between Henry V and Otto. Both of them grew up in England but were on opposing sides of the German civil war in 1206.