Question: St. Jude Thaddeus was one of the twelve apostles, as well as a relative of our Lord and of St. James the Less. With what Saint does he share his feast day? What is he the patron saint of?
Answer: St. Jude's feast day of October 28 is shared with St. Simon the Zealot, who travelled with St. Jude to preach in Persia where both were martyred.
St. Jude is the patron saint of desperate causes, desperate situations, and lost causes.