Roman Catholic and Orthodox churches: Councils and Treaties
- Basel, Council Of
- Chalcedon, Council Of
- Concordat
- Concordat Of 1801
- Constance, Council Of
- Constantinople, First Council Of
- Constantinople, Fourth Council Of
- Constantinople, Second Council Of
- Constantinople, Third Council Of
- Council, Ecumenical
- Ecumenical Council
- Ephesus, Council Of
- Ferrara-Florence, Council Of
- Florence, Council Of
- Lateran Council, Fifth
- Lateran Council, First
- Lateran Council, Fourth
- Lateran Council, Second
- Lateran Council, Third
- Lateran Treaty
- Latrocinium
- Lyons, First Council Of
- Lyons, Second Council Of
- Nicaea, First Council Of
- Nicaea, Second Council Of
- Pisa, Council Of
- Poissy, Colloquy Of
- Roman Question
- Trent, Council Of
- Trullan Synod
- Vatican Council, First
- Vatican Council, Second
- Vienne, Council Of
- Whitby, Synod Of
- Worms, Concordat Of
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