I can just imagine the conversation:
- My liege, what shall be your title?
- Call me King of Iran!
- My liege, we have discovered that there are lands outside of Iran, but we haven't figured out what to call them yet.
- Well, better call dibs. Make that "King of Iran and not-Iran!"
- My liege, the lands of not-Iran seem to have their own kings.
- Better make that "king of kings" since I already claimed those lands.