Your knowledge of how British Royalty functions is broad and uncommonly deep. Are you in some manner a Subject of The Queen, I.e. British, Canadian or Kiwi?
I hope I'd be interested anyway - this is all part of my country's (both of them) Constitutional law and I think informed citizens should have a decent familiarity with such things as they apply to their country. It's little different from an American understanding the Constitution of the United States - not everybody bothers, but sensible people do.