Let's say the POD is that the Wars of the Roses are even more messy than IOTL, causing a great loss of royal power and authority. Henry VII is able to stabilise the situation, but nevertheless the king only really directly controls the southern and central parts of the country, with the north, south-west, and Wales essentially being semi-independent. (Think of the situation in the HRE for an analogy.)
Now, let's say that the Reformation still happens as IOTL, and that Henry VIII still marries Catherine of Aragon and still decides to break with Rome in order to get rid of her. And for the sake of an interesting TL, let's further say that the semi-independent lords in the north and west want to remain Catholic. What would happen? Would Henry be able to force them into line, or would they be strong enough to make Henry back down? Or would we get a long-term religious division like in France or Germany?
Now, let's say that the Reformation still happens as IOTL, and that Henry VIII still marries Catherine of Aragon and still decides to break with Rome in order to get rid of her. And for the sake of an interesting TL, let's further say that the semi-independent lords in the north and west want to remain Catholic. What would happen? Would Henry be able to force them into line, or would they be strong enough to make Henry back down? Or would we get a long-term religious division like in France or Germany?