Columbia subject headings:
Council of Lyon (1st : 1245 : Lyon, France)--Concordances.
Council of Lyon (2nd : 1274 : Lyon, France)--Concordances.
Harvard subject headings:
Catholic Church. Council of Lyons (1st : 1245)
Catholic Church. Council of Lyons (2nd : 1274)
Council of Lyon (1st : 1245 : Lyon, France)--Concordances.
Council of Lyon (2nd : 1274 : Lyon, France)--Concordances.
Princeton subject headings:
Catholic Church. Council of Lyons (2nd : 1274)
Lyons, Council of (1st : 1245)--Concordances.