The pope is the Bishop of Rome and the leader of the worldwide Catholic Church. In the Catholic Church, the Pope is regarded as the successor of Saint Peter, the Apostle. Saint Peter, who was the first Bishop of Rome and the first pope, is thought to have reigned for over 30 years (AD 29 - 64?/67?), but the exact length is not reliably known. The current office-holder is Pope Benedict XVI [image left], who was elected in a papal conclave on 19 April...