A. Catholics are called Roman to show that they are in union with the true Church founded by Christ and governed by the Apostles under the direction of St. Peter, by divine appointment the Chief of the Apostles, who founded the Church of Rome and was its first bishop. A. A bishop's diocese is sometimes called his see. The diocese of Rome, on account of its authority and dignity, is called the Holy See, and its bishop is called the Holy Father or Pope. Pope means father. We call the right by which St. Peter or his successor has always been the head of the Church, and of all its bishops, the Primacy of St. Peter or of the Pope.
Primacy means holding first place.
From the history of the Church, which shows that Peter and his successors have always acted and have always been recognized as the head of the Church. We know that the rights and privileges bestowed on St. Peter were given also to his successors, the Popes, because the promises made to St. Peter by Our Lord were to be fulfilled in the Church till the end of time, and as Peter was not to live till the end of time, they are fulfilled in his successors. Before he came to Rome, St. Peter established a Church at Antioch and ruled over it for several years. The successors of the other Apostles are the Bishops of the Holy Catholic Church. We know that the bishops of the Church are the successors of the Apostles because they continue the work of the Apostles and give proof of the same authority.