So as we've been talking about the late Roman Empire and even the fall of the Western Empire and the beginning of the Byzantine Empire, you might already notice that there are several very powerful actors here. With the fall of the Western Roman Empire, you have the Byzantine Emperor, who considers him, and as we'll see also herself, the Roman Emperor. We have the bishop, the patriarch, or often known the Pope of Rome. Now, Rome is significant because according to tradition, the church at Rome was founded by the Apostle Peter, who was considered by many to be the first amongst the apostles. But of course, Rome was the seat of the Roman Empire for a very, very, very long time. And so you could imagine the bishop of the Church of Rome, the Pope of Rome, would be a very powerful figure. Now, you also have the bishop or the patriarch of Constantinople, which is another capital, and really the capital, of the Byzantine Empire.