Peter was chosen by Christ as the leader of His apostles and His church (see Gospel according to Matthew, Ch 16, V 18). Tradition has each Pope as the successor of Saint Peter, as the other Bishops, Archbishops and Cardinals are successors of the Apostles. So, each Pope assumes the role of Saint Peter as leader of the Church. St. Peter's is built over the necropolis (city of the dead, or cemetery), where the bones of Saint Peter were buried after he was crucified on Vatican Hill. So, the Church really is built upon Saint Peter, just as Christ had said.
Peter was appointed 'pope' by Jesus Christ. There was no election by the other apostles.
He was appointed by Christ to be pope.
Simon Peter was chosen as the first pope by Our Lord.
The chain of authority goes thusly: Jesus Christ Pope Bishops Priests Deacons Bishops that are head of an Archdiocese are known as Archbishops, Bishops that have been chosen as electors of the new Pope are Cardinals, but they all remain bishops.
Peter was chosen as the leader of the Church and apostles. Pope Gregory was chosen to be the pope and leader of the Church.
Sergius I was chosen by a group of judges, soldiers, clergy, and citizens from the region around Rome which finally settled the problem of three claimants to the chair of Peter.
Peter was chosen by Christ to be the first leader of his new Church - the first pope.
Bishops that elect the pope are called cardinals.
The Pope appoints you and you are consecrated a Bishop by the Pope along with two others Bishops assisting him, or by whichever three Bishops he chooses in his place.
As the successor of Saint Peter, supreme authority is vested in the Pope. He has universal jurisdiction and all Catholic bishops may only use their authority when they are in communion with the Pope.
The pope became a Christian at the time of Saint Peter the first pope.
St. Peter was chosen as the leader of the apostles and first pope by Jesus.
There can be no such person as a "wife of the Pope". The Pope must be a Cardinal of the Catholic Church. Cardinals are, for the most part Bishops (with a few priests). All priests and bishops of the Catholic church take a vow of celibacy when they are first ordained and cannot ever marry. Even in the Eastern Rites which allow married priests, the Bishops are only chosen from the celibate priests.