Daily Medieval

The Western Roman Empire and Eastern Byzantine Empire had many differences over the centuries. Some of the biggest differences were religiou...

When the East-West Schism was over 200 years old, Byzantine Emperor Michael VIII Paleologos (1224 - 1282) asked Pope Gregory X to help reun...

Pope Leo IX's actions in 1054 (through his delegate Cardinal Humbert, actually) were the catalyst for the great East-West Schism between...

Patriarch Photios I of Constantinople was vaulted to his position (which he held at two different times, 858–866 and 877–886 CE) because of...

Pope Gregory at the Second Council of Lyons The Second Council of Lyons, mentioned yesterday, accomplished many things. It was called by...