Pontine Islands politically troubling citizens. Some two thousands years later the islands were used for the same reason by the Fascist regime. Agrippina the Younger, mother to the future Roman emperor, Nero, was exiled to the Pontine Islands by her brother, the then Roman emperor, Caligula, in 39 AD, before having the exile lifted by her uncle, the emperor Claudius upon his succession. Deposed Pope Saint Silverius was exiled here in 537 where he would die soon afterwards. The Pontine were abandoned during the Middle Ages due to constant raids by Saracens and pirates. During the 18th century, the Kingdom of Naples
Roman emperor not recognize him as "Basileus" of the Romans, however, which was a title that he reserved for himself. This line of Roman emperors was actually generally Germanic rather than Roman, but maintained their Roman-ness as a matter of principle. These emperors used a variety of titles (most frequently ""Imperator Augustus"") before finally settling on "Imperator Romanus Electus" ("Elected Roman Emperor"). Historians customarily assign them the title "Holy Roman Emperor", which has a basis in actual historical usage, and treat their "Holy Roman Empire" as a separate institution. To Latin Catholics of the time, the Pope was the temporal authority as