Sens | Roman Catholic Archdiocese of Buenos Aires | Roman Catholic Archdiocese of Sydney | Roman Catholic Archdiocese of Chicago | Roman Catholic Archdiocese of Munich and Freising | Roman Catholic Archdiocese of Los Angeles | Roman Catholic Archdiocese of Lingayen-Dagupan | Roman Catholic Archdiocese of Adelaide | Roman Catholic Archdiocese of San Antonio | Roman Catholic Archdiocese of Cincinnati | Roman Catholic Archdiocese of Quito | Roman Catholic Archdiocese of Quebec | Roman Catholic Archdiocese of Nueva Segovia | Roman Catholic Archdiocese of Milan | Roman Catholic Archdiocese of Kingston in Jamaica | Roman Catholic Archdiocese of Gniezno | Roman Catholic Archdiocese of Cashel and Emly | Roman Catholic Archdiocese of Zagreb | Roman Catholic Archdiocese of Turin | Roman Catholic Archdiocese of Toledo | Roman Catholic Archdiocese of New York | Roman Catholic Archdiocese of Hobart | Roman Catholic Archdiocese of Hermosillo | Roman Catholic Archdiocese of Cape Town | Roman Catholic Archdiocese of Canberra and Goulburn | Roman Catholic Archdiocese of Birmingham | Roman Catholic Archdiocese of Bamberg | Syro-Malabar Catholic Archdiocese of Ernakulam-Angamaly | Roman Catholic Archdiocese of Wellington | Roman Catholic Archdiocese of Washington |
On 16 July 876, Odo spoke at the Synod of Ponthion in favour of recognising the primacy of Archdiocese of Sens in Gaul, a position that put him at odds with his metropolitan, Hincmar of Reims.