First Council of Lyon

First Council of Lyon
Date1245
Accepted byCatholic Church
Previous council
Fourth Council of the Lateran
Next council
Second Council of Lyon
Convoked byPope Innocent IV
PresidentPope Innocent IV
Attendance250
TopicsEmperor Frederick II, clerical discipline, Crusades, Great Schism
Documents and statements
thirty-eight constitutions, deposition of Frederick, Seventh Crusade, red hat for cardinals, levy for the Holy Land
Chronological list of ecumenical councils

The First Council of Lyon (Lyon I) was the thirteenth ecumenical council, as numbered by the Catholic Church, taking place in 1245. This was the first ecumenical council to be held outside Rome's Lateran Palace after the Great Schism of 1054.