Berardo dei Marsi was an Italian cardinal and bishop born in 1079 in Colli di Monte Bove. After studying at Monte Cassino, he served as an administrator and governor of Campagna under Pope Paschal II. He was elevated to the rank of cardinal-deacon in 1099 and later became a cardinal-priest. As the Bishop of Marsi starting in 1113, he acted as a reformer by fighting simony and advocating for clerical celibacy. He died on November 3, 1130, after predicting the date of his own passing.