Saint Crispinian of Vienne was a Christian martyr and is recognized as a saint in the Catholic Church. He is believed to have lived during the 3rd century and is often associated with the city of Vienne, located in present-day France. Crispinian is celebrated for his steadfast faith and dedication to spreading Christianity in a time of persecution. His feast day is observed on October 25, and he is often depicted in religious art holding a palm branch, symbolizing victory over adversity. Saint Crispinian is also venerated alongside his brother, Saint Crispinian of Rome, who shares a similar legacy of martyrdom and faith.