Erm I don't know how to break this to you but there already is an Elizabeth II.
This is a different Queen Elizabeth II.
Will Elizabeth II marry Philip.
This is a different Queen Elizabeth II.
But Elizabeth II is born post 1900.
This is a different Queen Elizabeth II in Pre-1900.
But Elizabeth II is born in the 20s.
This is a different Queen Elizabeth II born in 1820.
So it is, a different Elizabeth?
Yes, as I have said!