Ferentium (diocese)Roman Catholic titular see / From Wikipedia, the free encyclopedia Diocese of Ferentium is a former bishopric (now titular see) with capital in town Ferentium near Viterbo (in Lazio, Central Italy), which absorbed it.
Diocese of Ferentium is a former bishopric (now titular see) with capital in town Ferentium near Viterbo (in Lazio, Central Italy), which absorbed it.