Helladius participated in the first Council of Ephesus in 431. Paul took part in the Council held at Antioch of 445 to judge the work of Athanasius of Perrhe and at the Council of Chalcedon of 451. In 518 Bishop John signed a Synodal letter against Severus of Antioch and the Monophysite party.
Helladius participated in the first Council of Ephesus in 431. Paul joined the council held at Antioch in 445 to assess Athanasius of Perrhe's work and attended the Council of Chalcedon in 451. In 518, Bishop John signed a Synodal letter opposing Severus of Antioch and the Monophysite faction.