James, son of Zebedee, was an elder brother of John the Evangelist; with Peter and John he formed the inner circle of three to whom Christ revealed his greatest moments — the raising of Jairus's daughter, the Transfiguration on Tabor, the agony in Gethsemane. Jesus called the brothers 'Boanerges' — Sons of Thunder.
He was the first of the Twelve to be martyred. Acts records that Herod Agrippa I, in his persecution of the Church, 'killed James the brother of John with the sword' (Acts 12:2) — beheading, the Roman form of execution. This martyrdom is the only one of the Twelve recorded in the New Testament itself, dating to around AD 44.
A medieval Spanish tradition, supported by Bishop Theodemir of Iria in the 9th century, holds that James had preached in Spain before his return to Jerusalem and that, after his beheading, his body was carried by his disciples back to the coast of Galicia. His tomb, rediscovered in the early 9th century at Compostela ('field of the star,' according to the legend), became the third great pilgrimage of medieval Christendom — after Jerusalem and Rome.

