Ephrem the Syrian was a Syriac deacon and a prolific Syriac-language hymnographer and theologian of the 4th century from the region of Syria. His works are hailed by Christians throughout the world, and many denominations venerate him as a saint. He has been declared a Doctor of the Church in Roman Catholicism. He is especially beloved in the Syriac Orthodox Church. He has been called the most significant of all of the fathers of the Syriac-speaking church tradition.
Ignatius Zakka I was is the 122nd reigning Syriac Orthodox Patriarch of Antioch and All the East and, as such, Supreme Head of the Universal Syriac Orthodox Church. He was an observer at Second Vatican Council before becoming metropolitan bishop of Mosul, Iraq. As Patriarch Ignatius Zakka I, he has been involved in ecumenical dialogue and is a president of the World Council of Churches.
Syrian Orthodox Church: Tradition of Tur Abdin in Mesopotamia [CD]