(from the http://www.bibleinfo.com/en/questions/who-were-twelve-disciples webpage)
Andrew was the brother of Peter, and a son of Jonas. He lived in Bethsaida and Capernaum and was a fisherman before Jesus called him. Originally he was a disciple of John the Baptist (Mark 1:16-18). Andrew brought his brother, Peter, to Jesus (John 1:40). He is the first to have the title of Home and Foreign Missionary. He is claimed by three countries as their Patron Saint-Russia, Scotland and Greece. Many scholars say that he preached in Scythia, Greece and Asia Minor.
Andrew introduced others to Jesus. Although circumstances placed him in a position where it would have been easy for him to become jealous and resentful, he was optimistic and well content in second place. His main purpose in life was to bring others to the master.
According to tradition, it was in Achaia, Greece, in the town of Patra that Andrew died a martyr. When Governor Aepeas' wife was healed and converted to the Christian faith, and shortly after that the Governor's brother became a Christian. Aepeas was enraged. He arrested Andrew and condemned him to die on the cross. Andrew, feeling unworthy to be crucified on the same-shaped cross as his Master, begged that his be different. So, he was crucified on an X-shaped cross, which is still called Saint Andrew's cross and which is one of his apostolic symbols. A symbol of two crossed fish has also been applied to Andrew, because he was formerly a fisherman.