Saint Bertin was a 7th-century monk and the founder of the Abbey of Saint-Bertin in Saint-Omer, France. He is known for his dedication to monastic life and his role in spreading Christianity in the region. His abbey became an important center for learning and culture during the Middle Ages. Bertin is often associated with the Benedictine order, which emphasizes community living and prayer. His feast day is celebrated on September 5, and he is venerated as a saint in both the Roman Catholic and Eastern Orthodox traditions. His legacy continues to influence monastic practices today.