Food for the journey: The thirteenth-century French version of Guiard of Laon's sermon on the twelve fruits of the Eucharist

The one surviving French sermon on the Eucharist of Guiard of Laon, bishop of Cambrai (1238-1247) and supporter of the movement to establish the feast of Corpus Christi, was long thought to be the record of vernacular preaching by the bishop, until the discovery of a Latin original prompted a reassessment. Using all available manuscript evidence, and carefully comparing the Latin and French sermons, I position the French sermon as a work of vernacular theology created during Guiard’s episcopate, infused with the spirituality of Eucharistic devotion that culminated in the Corpus Christi movement. It was well received by an elite lay audience, continuing to circulate in collections of devotional texts for the next two centuries.