There have been several Councils of Soissons:
March 744: Presided over by St Boniface. Attended by Hartbert, bishop of Sens. Appointed Abel bishop.
13 November 833: Presided over by Ebbo, archbishop of Rheims. Held at the church of St Mary. Deposed Louis, king of Aquitaine, and forced him to confess to various crimes.
853: Declared the acts of Ebbo during his second episcopate invalid.
18 August 866: Attended by Wenilo, archbishop of Rouen.
1092-1093: Presided over by Renaud du Bellay, archbishop of Rheims. Condemned Roscellin's form of nominalism as a heretical tritheism. Its acts do not survive.
