From what I heard the sons of Eleanor of Aquitaine are rebellious from their father, what if Eleanor of Aquitaine gives birth to sons of Louis VII, his last son would be John Lackland while his eldest son would be named as Philip the Young King.
I think the Devils Brood wouldn't come to be in this case. If Eleanor mothers the children of a completly different monarch, there are several butterflies to take into account. They won't be the same personality wise, for one. There may not even be the same number of children in the Brood.