AD 1274

Second Council of Lyons

Reunion with the Greek Church, reform, and aid for the Holy Land.

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Location
Lyons in France
Leaders
Pope Gregory X; Bonaventure attended and died during it; Thomas Aquinas died on the way
Issues discussed
  • Union with Constantinople and the procession of the Holy Spirit
  • Rules for papal elections
Decisions made
  • Proclaimed a union with the Greeks that was not received in the East
  • Established the conclave procedure for electing popes
Historical impact
The conclave rules endure; the union collapsed within a decade for lack of acceptance by Greek clergy and people.

Sources and References