Bonfilius of Foligno was an Italian Benedictine monk and bishop who lived from approximately 1040 to 1115. Born in Osimo, he joined the monastery of Santa Maria di Storaco, where his deep knowledge of scripture led to his election as abbot. He later served as the Bishop of Foligno between 1072 and 1078. Driven by religious devotion, he eventually joined the First Crusade as a pilgrim, traveling to the Holy Land to live as a hermit before returning to Italy.