[MarkBsnr]

"Say what? The Pope isn't the head of the Church. Jesus is. The Pope is the Bishop of Rome. He is an equal with the Bishop (Patriarch) of, say, Moscow."

Can the bishop of Moscow speak ex cathedra on behalf of the entire Roman Catholic church?

No. That is not his jurisdiction. He can speak on behalf of the Russian Orthodox Church. That is is his jurisdiction. He also cannot speak on behalf of the Greeks or the Alexandrians or the Constantinoplians either. Those don't fall within his jurisdiction either.

At a more local level, the Bishop of Davenport cannot speak on behalf of the Diocese of Peoria. Adjacent dioceses. That is the way that the Church has worked for the last two millennia.

[circlecity]

"At a more local level, the Bishop of Davenport cannot speak on behalf of the Diocese of Peoria. Adjacent dioceses. That is the way that the Church has worked for the last two millennia."

Are either of these Bishops bound by pronouncements the Pope makes ex cathedra? Does the Pope speak for them?