Assisi City, Italy. Umbria Environment. Saint Francis, Tourism and Vacation. Assisi is Umbria's most famous town and one of its loveliest. This beautiful medieval town, with its geranium-hung streets, lovely views, and fountain-splashed piazzas, is heir to the legacy of St. Francis, patron saint of Italy and the town's favorite son. The 12th-century monk founded the Franciscan order and sparked a religious revolution. The town is an important pilgrimage...