Saint Jacob from Nisibis / Nusaybin
He was born in Nisibis, southeast of Mardin and for some years led a monastic life. He was bishop of the city for twenty years, from 309 approximately to 338, the year of his death. Mar Yakup Church, here his body rests, was originally built to whom Saint John, in the Book of Revelation or Apocalypse, addresses seven letters. They are all en the Aegean region: Ephesus (Seljuk), Smyrna (İzmir), Pergamon (Bergama), Thyatira (Akhisar), Sardis (Sart), Philadelphia (Alaşehir) and Laodicea, off Denizli on the way to Pamukkale. Of these, the only surviving Christian community is in İzmir.