The Papacy, the Patriarchate of Constantinople and the Second Council of Lyon (1274)

Abstract

The current publications present information about the history of church union negotiations in the second half of the 13th century. The mane goal of emperor Michael VIII Palaeologus is to stop the military campaign against Byzantium. At the Second Council of Lyons (6 July 1274) was declared a union between Catholics and Orthodox. This is the most significant opportunity for the unity of Christendom. But the union also became an occasion for final division. Then any attempt at rapprochement is doomed to failure.