1272 ⟶ Second Council of Lyon's Union Attempt
1274: Second Council of Lyon attempts to unite the churches ...
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1272
1801
⛪ Pope Boniface III Secures Supremacy of Roman See
Pope Boniface III elected to the papacy on the death of Pope Sabinian. He sought and obtained a decree from Byzantine Emperor Phocas which stated that "the See of Blessed Peter the Apostle should be the head of all the Churches". This ensured that the title of "Universal Bishop" belonged exclusively to the Bishop of Rome.⟶
CatholicismReligious AuthorityByzantine EmpireChurch and State
Italy⛪ Photian Schism Begins
879: Period of schism between Eastern and Western churches.⟶
ChristianityEastern Orthodox ChurchCatholicismSchismByzantine EmpireReligious ConflictTheologyMiddle Ages
Vatican City🕊️ Second Lateran Council Ends Papal Schism
in April, the Second Lateran Council ends the papal schism.⟶
CatholicismSchismCouncilMiddle AgesChurch ReformChristianityReligious Authority
Vatican CityItaly✉️ Pope Innocent III's Invitation to Kaloyan for Church Union
Pope Innocent III writes to Kaloyan, inviting him to unite the Bulgarian Church with the Roman Catholic Church.⟶
ChristianityRoman Catholic ChurchEastern Orthodox ChurchCatholicismDiplomacyReligious PoliticsBulgarian EmpireMiddle Ages
BulgariaVatican City⛪ Second Council of Lyon's Union Attempt
1274: Second Council of Lyon attempts to unite the churches of the Eastern Roman Empire with the Church of Rome.⟶
CatholicismEastern Orthodox ChurchByzantine EmpireMiddle AgesEcumenismCouncil
FranceVatican City🤝 Napoleon and Pope Pius VII Sign the Concordat
Napoleon and Pope Pius VII sign the Concordat of 1801 in Paris.⟶
Napoleon BonaparteCatholicismReligious Freedom
FranceVatican City