Tradition has it that after Pentecost he left to preach the Gospel on a long journey around the Black Sea coast. His journey took him to Bithynia (Turkey), Ephesus, Mesopotamia, modern day Ukraine, Thrace (between the Bosphorus and the Danube) Byzantium and finally Achaea (north Peloponnese) where he was crucified by the emperor Nero in Patras in the year 60. The cross he was put to death on was in the form of an X, which is the origin of the name of the cross of Saint Andrew.
In the 4th century his relics were transported to Constantinople but today lie in Amalfi in Italy. In the 60’s a large part of the saint’s relics and his cross were given back to the church of Greece. A large church was built in Patras to receive them.
Saint Andrew is portrayed by a cross with arms of equal length called the cross of Saint Andrew, and sometimes as the fisherman from Galilee carrying a large net containing fish.