Photios I of Constantinople
Later again around 860AD the controversy over the Filioque and the Frankish monks broke out in the course of the disputes between [[Photios I of Constantinople|Saint Photius]] and [[Patriarch Ignatius of Constantinople]]. In 867, Photius was Patriarch of Constantinople and issued an "Encyclical to the Eastern Patriarchs", and called a [[Council of Constantinople (867)|council in Constantinople]] in which he charged the Western Church with [[heresy]] and schism because of differences in practices, in particular for the "Filioque" and the authority of the Papacy. This moved the issue from jurisdiction and custom to one of dogma. This council declared Pope Nicholas anathema, excommunicated and deposed.