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1245
Anno Domini

Ecumenical Council

Council of Lyon I

June-July 1245 Lyon, France Convoked by: Pope Innocent IV 150 bishops 22 canons
Ecumenical Council — Universally Recognised
22Canons
Section I

The Crisis that summoned Council of Lyon I

The apologetic argument: Deposed Emperor Frederick II for his crimes against the Church. Organised support for the Holy Land. The council exercised the supreme authority of deposing a secular ruler, demonstrating the medieval understanding that papal authority extends to judging the conduct of Christian princes.
The Ecumenical Councils

The Seven Ecumenical Councils

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Explore verified claims across seven centuries of Church history.

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