Alberic of Monte Cassino was a Cardinal in the Roman Catholic Church, who died in 1088. He was a cardinal from 1057.
He was (perhaps) a native of Trier, and became a Benedictine. He successfully opposed the teachings of Berengarius, which were considered heretical by the Pope, defending the measures of Gregory VII during the Investiture Controversy. [1]
He is the author of numerous works in theology, hagiography, grammar, rhetoric and music; and is the author of the earliest medieval treatise on ars dictaminis , or letter-writing (De dictamine). Many of his letters are found in the works of Peter Damian. [2]
One of his pupils, John of Gaeta, was the future Pope Gelasius II. [3]
This article incorporates text from a publication now in the public domain : Shahan, Thomas Joseph (1907). "Alberic of Monte Cassino". In Herbermann, Charles (ed.). Catholic Encyclopedia . Vol. 1. New York: Robert Appleton Company.