So, I have an idea for a TL, but I'm not exactly sure how to go about getting it to work:
After the English Restoration, would it be possible, somehow, for us to get a stronger Crown? King Charles II, by the Declaration of Breda, already had a great deal of power--would it have been possible for him, assuming he had persued a more anti-Catholic policy (and thus ensured more confidence in his Parliament), to have eventually stopped summoning Parliament altogether (as he did from 1681-1685) and ruled in a more absolutist style? I'm curious to see if things could have turned up differently.
Also, just for fun's sake, let's assume that he also manages to produce a legitimate heir (with Queen Catherine or otherwise--if the POD is earlier).