council · 879 · Constantinople
The great council of 879–880 — nearly 400 bishops, with Rome's legates concurring — restored Photius, set aside the council of 869, and reaffirmed the creed without addition. It was the last council East and West held in common before the schism.
The Fourth Council of Constantinople was held in 879–880. It confirmed the reinstatement of Photius I as patriarch of Constantinople.
Healing the Photian schism after Ignatius' death.
Photius recognized by Rome's legates, the 869 council set aside, the creed reaffirmed without addition — the last council East and West held together.