Complex sentence: Temnos (also "Temnus") was a small Greek city-state, on the western coast of Anatolia; the name survives as a Catholic titular see: when Temnos was a functioning diocese, its bishop was a suffragan of Ephesus.
Split into simpler sentences: Temnos (also "Temnus") was a small Greek city-state, on the western coast of Anatolia. When Temnos was a functioning diocese, its bishop was a suffragan of Ephesus.