Yahballaha I was bishop of Seleucia-Ctesiphon, grand metropolitan and primate of the Church of the East from 415 to 420. He is included in the traditional list of patriarchs of the Church of the East. During his tenure he conducted the second council of Seleucia-Ctesiphon in his episcopate,[1] addressing tensions rising with the church in the Roman Empire.
- ^ Curtin, D. P. (Aug 2015). Council of Seleucia-Ctesiphon: Under Yahbalaha I 420 AD. ISBN 9781087970455.