So I'm working on a new tl with a slightly different premise; how much change could adding in a single "Great Man" (or woman) to history make, and not just due to butterflies. My current idea is for a ATL British monarch born in ~1685 who essentially reigns from 1714-1770 let's say. How could such a queen or king be most different from the OTL Georges and most great? A particularly driven queen who promotes proto-feminist ideas? A military genius who returns Britain to the continent or crushes any potential American Revolution? A philosopher-king on the level of Frederick the great? Or simply a native English speaker who continues to go to cabinet meetings? What potential ideas do all of you have? (Sorry for the vagueness btw, I want to leave room for surprising scenarios)