RedOnRed wrote:

Does it matter?

Not to me & I'd hope not to you. Just me being a little pedantic, hope
you'll excuse me.

French & Norman then were probably as different as English & Welsh
now. William had no valid claim to the throne and usurped it by
violence. It might matter to the English since this is was the starting
point for their monarchy.

The same race of people are now included in the state of France.

They might want to deny that.