《不列颠百科全书》:
St. Peter the Apostle, original name Simeon or Simon, (died 64 CE, Rome [Italy]), disciple of Jesus Christ, recognized in the early Christian church as the leader of the 12 disciples and by the Roman Catholic Church as the first of its unbroken succession of popes. Peter, a Jewish fisherman, was called to be a disciple of Jesus at the beginning of Jesus’ ministry. He received from Jesus the name Cephas (from Aramaic Kepa [“Rock”]; hence Peter, from Petros, a Greek translation of Kepa).