The Roman Catholic Diocese of Castellaneta is in Apulia. It is a suffragan of the Roman Catholic Archdiocese of Taranto.[1]
Nothing is known of Castellaneta previous to 1080, when it was taken by Robert, Duke of Tarentum, who expelled its Byzantine inhabitants. At this time, probably, the episcopal see was created; in the same year Tarentum was made a metropolitan see. A bishop of Castellaneta, Joannes, is first mentioned with the diocese. There is a record of an otherwise unknown Bishop of Mottola, who died in 1040; his successor was a certain Liberius.[2]
This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed (1913). Catholic Encyclopedia. Robert Appleton Company.