This and the following two talks by Dr. John Rao cover the controversial Council of Chalcedon and reactions to it from those who could not accept Pope St. Leo's definition of Christ as possessing two natures united in one Divine Person--the so-called Monophysites. Taken from the series: "From Augustine and Chrysostom to the Papal-Frankish Alliance Christianity in the Early Middle Ages (395-752) - 2006 VonHildebrand Institute"