Primary sources trump secondary sources. I cited Hefele mostly for the translation before I did my own. I don’t have to agree with him on everything, especially when I base my position and differences upon primary sources. The Roman Church’s recognition of Trullo as ecumenical is indisputable in Hadrian’s letter. I’ll admit that Trullo is somewhat irregular in its conduct, but that doesn’t negate the fact that Hadrian explicitly considered it a part of the six previous ecumenical councils. Even though Pope John VIII later claimed exemption from some of its canons, it does not change this fact.
By this faulty reasoning it means that 2 Lyons is ecumenical for the Eastern Orthodox or at least the patriarchate of Constantinople…
The truth is that besides one pope, no other pope can be said to have explicitly confirmed it as part of the sixth council but we know that numerous popes rejected it as such and up to this day the Roman church does not recognise it’s ecumenicity.
Further if the Roman church does recognise it as ecumenical then that would still be the case today.
As Hefele proved, this council was convened more than a decade later, in 691 or 692. The list of signatories further shows that the Quinisext Council was not constituted of the same bishops who had attended the Sixth Ecumenical Council. This was really a new council, especially since the ecumenical council had long ago been formally closed and ratified.
Pope Sergius steadfastly refused to sign the acts of the council, claiming he would rather die than endorse its errors
Pope John VIII (872-882) referred to the Trullan canons as those which the Greeks “maintain” (perhibent) to be from the sixth general synod, so the question of the council’s ecumenicity was by no means considered decided. The Greek claim was based on the belief that the same bishops of the Sixth Ecumenical Council issued the Trullan canons just five years later, but we have seen that this belief is historically inaccurate.
John VIII, who accepted from that council “all those canons which did not contradict the true faith, good morals, and decrees of Rome.” In particular, the Apostolic See now accepted all eighty-five of the so-called Apostolic Canons, whereas previously it had only accepted the first fifty. Apparently, even at this late date, the Romans had not generally accepted the Trullan canons, which could hardly be the case if Adrian I or any other pope had truly declared the council to be ecumenical.
Relatively few of the Trullan canons were explicitly identified as approved by the Pope. Only the eighty-five Apostolic Canons (mentioned in the second canon of Trullo) are known to have been approved by John VIII, while Adrian I approved at least the eighty-second canon of Trullo. For the remainder of the canons, we are left to apply John VIII’s principle of consistency with “the true faith, good morals, and decrees of our Rome.”
Lastly numerous sources throughout the medieval period indicate that that Rome recognized that Trullo was binding law for the Greeks (i.e., Eastern Orthodox and Eastern Catholics who follow the Byzantine Rite) even though it had no binding status for Latin Catholics.