Saint Lambert was a 7th-century bishop of Maastricht, known for his dedication to the Christian faith and his role in spreading Christianity in the region. He is often associated with the establishment of the Bishopric of Maastricht and is considered a martyr due to his violent death. His feast day is celebrated on September 17. Saint Lambert is recognized as the patron saint of Bishops, clergy, and painters. His relics are housed in various churches, and he is often depicted in art holding a bishop's staff. His life and legacy continue to inspire many within the Christian community.