Yes, Bishop of Rome, you are very important, but we consider you to be first amongst equals. You don't have jurisdiction over all of Christendom. Together, we have jurisdiction. And this was, to some degree, the case under Justinian, and it was very clear at this time that the Byzantine emperor was very powerful, not just over the temporal realm, really referring to the day-to-day material realm, but also a lot of influence on the spiritual realm, which was really supposed to be the domain of the bishops or the popes or the patriarchs. This notion of the pentarchy was codified in the Justinian law, this idea that these five centers of Christianity really have extra weight and collectively are really leading Christendom. Now, as I mentioned, things get interesting as we fast forward about 250 years. So let's go to the year 800.