The pope, besides being the leader of the Catholic Church, is the secular leader of the city-state of Vatican City. In a sense, he is the 'emperor' of the Vatican. Until the reign of Pope Pius IX the pope was the secular leader of a large portion of Italy called the Papal States. The Papal States were under the sovereign direct rule of the Pope from the 500s until 1870.
No.
No, they are not the same person.
The Roman emperor had to answer to the pope.
the pope and the emperor disagreed on who controlled a certain part of Rome, so the pope eventually banished the emperor from the church.
The Byzantine army supported the emperor. There was a schism between the Catholic and Orthodox churches in the eleventh century. From that time onward the emperor was seen as the head of the Orthodox church, and the Pope as the head of the Catholic church.
He did not want people to think the pope had the power to choose who was emperor.
He did not want people to think the pope had the power to choose who was emperor.
Pope Leo III crowned Charlemagne as Emperor of the Romans, on December 25, 800.
Charlemagne was crowned as Holy Roman Emperor by Pope Leo III on December 25, 800.
Charlemagne did not want people to think the pope had the power to choose who was emperor.
Pope Leo III crowned Charlemagne emperor of the Romans (not the Roman people).
Holy Roman Emperor.