20 – Filioque, St. Photios and the Council of 879 AD

Filioque, St. Photios and the Council of 879 AD The Emperor Charlemagne and the Filioque, SS. Cyril and Methodius and mission to the Slavs, St. Photius and Council of Constantinople in 879AD condemn the Filioque. 

http://archive.org/download/OrthodoxChurchHistory/WEB_20-Filioque_WEB.mp3