History does recall that:
Pope Pius XI, A. D. 1922-1939: “Furthermore, in this one Church of Christ no man can be or remain who does not accept, recognize and obey the authority and supremacy of Peter and his legitimate successors. Did not the ancestors of those who are now entangled in the **errors of Photius [the eastern “Orthodox” schismatics]**and the reformers [the Protestants], obey the Bishop of Rome, the chief shepherd of souls?
“If, then, the
Greeks or others say that they were not committed to the care of Peter and his successors, they necessarily confess that they are not of the sheep of Christ; for the Lord says, in John, that there is one fold, one shepherd, and one only.” (Unam Sanctam) Pope Boniface VIII
“Therefore if a man does not want to be, or to be called, a
heretic, let him not strive to please this or that man …] but let him hasten before all things to be in communion with the Roman See. If he be in communion with it, he should be acknowledged by all and everywhere as faithful and orthodox. He speaks in vain who tries to persuade me of the orthodoxy of those who, like himself, refuse obedience to his Holiness the Pope of the most holy Church of Rome: that is to the Apostolic See.” (Quoted by Pope Leo XIII in Satis Cognitum)
“They, therefore, walk in the path of
dangerous errors (ie. heresy) who believe that they can accept Christ as the head of the Church, while not adhering loyally to His Vicar on earth. They have taken away the visible head, broken the visible bonds of unity and left the Mystical Body of the Redeemer so obscured and so maimed, that those who are seeking the haven of eternal salvation can neither see it nor find it.” Pope Pius XII
“So little does the Roman Church stand alone, as you think, that in the whole world any nation that in its pride dissents from her is in no way a church, but a
council of heretics, a conventicle of schismatics, and a synagogue of Satan.”
- Pope Leo IX speaking of the Orthodox at the time of the schism