(from the http://www.bibleinfo.com/en/questions/who-were-twelve-disciples webpage)
Jude, Thaddeus, or Lebbeus, son of Alpheus or Cleophas and Mary. He was a brother of James the Younger. He was one of the very little-known Apostles and lived in Galilee. Tradition says he preached in Assyria and Persia and died a martyr in Persia.
Jerome called Jude "Trinomious" which means "a man with three names." In Mark 3:18 he is called Thaddeus. In Matthew 10;3 he is called Lebbeus. His surname was Thaddeus. In Luke 6:16 and Acts 1:13 he is called Judas the brother of James. Judas Thaddeus also was called Judas the Zealot.
By character he was an intense and violent Nationalist with the dream of world power and domination by the Chosen People. In the New Testament records (John 14:22 NIV) he asked Jesus at the Last Supper, "But Lord, why do you intend to show yourself to us and not to the world?" Judas Thaddeus was interested in making Christ known to the world. Not as a suffering Saviour, however, but as ruling King. We can see plainly from the answer Jesus gave him, that the way of power can never be substituted for the way of love.
It is said that Jude went to preach the gospel in Edessa near the Euphrates River. There he healed many and many believed in the name of the Master. Jude went from there to preach the Gospel in other places. He was killed with arrows at Ararat. The chosen symbol for him is the ship because he was a missionary thought to be a fisherman.