St. Lambert of Avignon was a Christian bishop and martyr who lived during the 7th century. He is best known for his role in spreading Christianity in the region of Avignon, France. His dedication to the faith and his efforts to convert the local population made him a significant figure in early Christian history. St. Lambert is often celebrated for his piety and commitment to serving others. He is venerated as a saint in the Catholic Church, and his feast day is observed on September 17. His legacy continues to inspire many in their spiritual journeys.