In practice, the Bishop of Rome eventually acknowledged this situation.
Eventually, the title became associated especially with the Bishop of Rome.
The pope is also the called 'the Bishop of Rome'.
Leo was made Bishop of Rome on 29 September 440.
Originally, lay status did not bar election to the Bishop of Rome.
Adherence to the Bishop of Rome was not "necessary" for unity.
Nevertheless, nearly two years passed before a new Bishop of Rome was elected.
It was a slap in the face for the Bishop of Rome.
That's a word the Bishop of Rome would surely be familiar with.
And with that, the Bishop of Rome scurried out the glass door.