Now that our resident canon rule opinionist is back from hunting and we have a few more RCs eager for discussions, I thought I might ask opinions of some canons and how they may be either indicative of the developing schism of 1054 or perhaps even causative.
Late one night I was reviewing the canons of the 7 Ecumenical Councils on the CCEL website and was struck by one or two canons from the Council of Sardica, affirmed by the 7th Ecumenical Council, namely Canon IV: http://www.ccel.org/ccel/schaff/npnf214.xv.iii.iv.iv.html
Bishop Gaudentius said: If it seems good to you, it is necessary to add to this decision full of sincere charity which thou hast pronounced, that (confusing editorial comment snipped) if any bishop be deposed by the sentence of these neighbouring bishops, and assert that he has fresh matter in defence, a new bishop be not settled in his see, unless the bishop of Rome judge and render a decision as to this.
Bishop Gaudentius said: It ought to be added, if it be your pleasure, to this sentence full of sanctity which thou hast pronounced, that—when any bishop has been deposed by the judgment of those bishops who have sees in neighbouring places, and he [the bishop deposed] shall announce that his case is to be examined in the city of Rome—that no other bishop shall in any wise be ordained to his see, after the appeal of him who is apparently deposed, unless the case shall have been determined in the judgment of the Roman bishop.
I was immediately struck with these two English translations as they do not seem to be stating the exact same thing. In fact, I could envision the Eastern bishops coming away with a different idea as to what was decided than the Western bishops vis-a-vis papal authority. I can also imagine that each side could see their own concept of Rome's role as affirmed. Not too much later the schism of 1054 began in earnest. And I can readily see each side thinking it was standing on solid ground.
Canon V is related but offers no relief to a latent misunderstanding: http://www.ccel.org/ccel/schaff/npnf214.xv.iii.iv.v.html