That didn't exactly bring union, despite Norman French being the language of the ruling elite for hundreds of years. That actual Frenchman (William the Conquero

That didn't exactly bring union, despite Norman French being the language of the ruling elite for hundreds of years. That actual Frenchman (William the Conqueror) had a son (Henry I) whose plans for succession tipped us into The Anarchy that was, in part, the Norman French wars of succession and part 15 year civil war. Not a very unified union. :)