Constans I in the context of Council of Serdica

The Council of Serdica, or Synod of Serdica (also Sardica), was a synod convened in 343 at Serdica (located in modern-day Sofia, Bulgaria) in the civil diocese of Dacia, by Emperors Constans I, Augustus in the West, and Constantius II, Augustus in the East. It attempted to resolve "the tension between East and West in the Church." “The council was a disaster: the two sides, one from the west and the other from the east, never met as one.”