Yes! I was thinking the English reformation is a time period where we have lots of different takes on some of the historical figures. Maybe a choice between dating Queen Mary vs Queen Elizabeth? And for both routes you'd have an option between something more historically accurate (Mary marries someone else and then dies, Elizabeth leaves you b/c she doesn't do marriage) and an AU happy ending?

Or hm, what if you only have one option of who to date, but based on your choices you get a very different version of them, coming from a different historical account of their life? Queen Elizabeth would be great for that.