You are the King or Queen of a Kingdom. You are one of the most influential person there is. If you ever need to make a check within the limits of your Kingdom, you get advantage and a +3 on all charisma ability checks and saving throws. This doesn't take effect if you're talking to an Emperor or Empress.

Notes: Bonus: Charisma Ability Checks, Bonus: Charisma Saving Throws, Advantage: Charisma Ability Checks, Advantage: Charisma Saving Throws