I’m just curious to get the Orthodox response to this:
“We received directions at the hands of the most blessed and apostolic bishop of the Roman city [Leo I], who is the head of all the churches, that say that Dioscorus is not to be allowed to sit in the assembly, but that if he should attempt to take his seat, he is to be cast out. This instruction WE MUST carry out…This is the faith of the fathers, this is the faith of the apostles. So we all believe, thus the orthodox believe. Anathema to him who does not believe.** PETER HAS SPOKEN THUS THROUGH LEO.**” - Council of Chalcedon, 451
Isn’t this pretty damning?
I apologize if the quote was already mentioned, but I wasn’t about to go through all those pages of discussion.
The first part you posted was a portion of the what had happened and it is out of cotext here is the thye whole chapter it is very interesting to read it is actually just the opposite of what the RC tries to show

:
**"Extracts from the Acts.
Session I.
(Labbe and Cossart, Concilia, Tom. IV., col. 93.)
Paschasinus, the most reverend bishop and legate of the Apostolic See, stood up in the midst with his most reverend colleagues and said: We received directions at the hands of the most blessed and apostolic bishop of the Roman city, which is the head of all the churches, which directions say that Dioscorus is not to be allowed a seat in this assembly, but that if he should attempt to take his seat he is to be cast out. This instruction we must carry out; if now your holiness so commands let him be expelled or else we leave.278278 This whole paragraph reads with material differences in the Latin. Moreover while the Greek text is clear and grammatical, the Latin is most incorrect and halting. Leo is described as “Pope of the city of Rome,” instead of “bishop of Rome.”
The most glorious judges and the full senate said: What special charge do you prefer against the most reverend bishop Dioscorus?
Paschasinus, the most reverend bishop and legate of the Apostolic See, said: Since he has come, it is necessary that objection be made to him.
The most glorious judges and the whole senate said: In accordance with what has been said, let the charge under which he lies, be specifically made.
Lucentius, the most reverend bishop having the place of the Apostolic See, said: Let him give a reason for his judgment. For he undertook to give sentence against one over whom he had no jurisdiction. And he dared to hold a synod without the authority of the Apostolic See, a thing which had never taken place nor can take place.279279 This statement, so absolutely contrary to fact, has been a sore difficulty to the commentators. Arendt (Leo the Great and his Times, § 270) says that this meant only that “he had, without permission of the Pope, taken the presidency there, and conducted the proceedings, for Leo himself had acknowledged the synod by the fact that he allowed his legates to be present at it.” Almost the same is the explanation of the Ballerini (Leo M. Opera, Tom. ii. 460, n. 15.)
Paschasinus the most reverend bishop, holding the place of the Apostolic See, said: We cannot go counter to the decrees of the most blessed and apostolic bishop “Pope” for “bishop” in the Latin], who governs the Apostolic See, nor against the ecclesiastical canons nor the patristic traditions.
The most glorious judges and the full senate, said: It is proper that you should set forth specifically in what he hath gone astray.
Lucentius, the venerable bishop and holding the place of the Apostolic See, said: We will not suffer so great a wrong to be done us and you, as that he who is come to be judged should sit down [as one to give judgment].
The glorious judges and the whole senate said: If you hold the office of judge, you ought not to defend yourself as if you were to be judged.
And when Dioscorus the most religious bishop of Alexandria at the bidding of the most glorious judges and of the sacred assembly (τῆς ἱερᾶς συγκλήτου280280 The Latin here has the usual form “amplissimus senatus,” for which the Greek is περιφανέστατοι συγκλητικοὶ.) had sat down in the midst, and the most reverend Roman bishops also had sat down in their proper places, and kept silence."**
ccel.org/ccel/schaff/npnf214.xi.iii.html
very interesting huh?