Constantinople IV
When and where
870 AD in Constantinople
Crisis or controversy
Needed to decide the right
of Patriarch Photius or
the restoration of Ignatius.
Attendees
102 bishops;
Convened: Basil, Emperor;
Ratified: Adrian II, Pope.
 
Decrees and resolutions
Photius was condemned
in 27 canons.
Hagia Sophia with the Muslim minarets graphically removed
Basilica of Hagia Sophia, site of the Council
Map of Constantinople. More detailed map.