Gallus of Switzerland, also known as Saint Gall, was a Christian monk and missionary who lived during the 7th century. He is best known for founding the Abbey of Saint Gall in present-day Switzerland, which became a significant center of learning and culture in the Middle Ages. His work contributed to the spread of Christianity in the region. Saint Gall is often associated with the Carolingian Renaissance, a revival of art, culture, and learning under the rule of the Carolingian Empire. His legacy includes the preservation of manuscripts and the promotion of monastic life, which played a crucial role in shaping European history.