 The ecclesiastical province of Lydia had a metropolitan diocese at Sardis and suffragan dioceses for Philadelphia, Thyatira, Tripolis, Settae, Gordus, Tralles, Silandus, Maeonia, Apollonos Hierum, Mostene, Apollonias, Attalia, Hyrcania, Bage, Balandus, Hermocapella, Hierocaesarea, Acrassus, Dalda, Stratonicia, Cerasa, Gabala, Satala, Aureliopolis and Hellenopolis.Bishops from the various dioceses of Lydia were well represented at the Council of Nicaea in 325 and at the later ecumenical councils.Ancient episcopal sees of the late Roman province of Lydia are listed in the "Annuario Pontificio" as titular sees