 Originating as the church of the Abbey of St. Benignus, it became the seat of the Diocese of Dijon during the French Revolution, replacing the previous cathedral when it was secularised, and has been the seat of the succeeding Archbishopric of Dijon since the elevation of the diocese in 2002.The first church here was a basilica built over the falsely reported sarcophagus of Saint Benignus, which was placed in a crypt constructed for it by Saint Gregory of Langres in 511; the basilica over the crypt was completed in 535.This building became the centre of a monastic community.