Roman Catholic Archdiocese of Corfu Zakynthos and Cephalonia Tags: Clerical Administrative Region, Diocese.The Roman Catholic Archdiocese of Corfu Zakynthos and Cefalonia (Latin: Archdioecesis Corcyrensis Zacynthiensis et Cephaloniensis) is an archdiocese comprising the Ionian islands of Corfu Zakynthos and Cephalonia in western Greece. thumbnail area (km2) 1.2e+10 country Greece jurisdiction Diocese Learn more... Loading...