Photius refused to accept the supremacy of the pope in Orthodox matters or accept the Filioque clause, that had been added to the Nicene Creed by the Latin church, and was later the theological breaking point in the ultimate Great Schism in the 11th century.
Photius refused to accept the supremacy of the pope in Orthodox matters or accept the Filioque clause. Photius was later the theological breaking point in the ultimate Great Schism in the 11th century. The Filioque clause had been added to the Nicene Creed by the Latin church.