What is "satrianum"

The Diocese of Satrianum ( Latin) or Satriano ( Italian) is now a Roman Catholic titular see, that is, an episcopal see that is no longer a geographical diocese. It takes its name from a now destroyed town situated in Lucania and was a suffragan of the metropolitan see of Salerno. The adjectival form of the Latin name of the diocese is Satrianensis. The current titular archbishop is Patrick Coveney.