In his Epistula ad Teodboldum to Theutbald I (bishop of Langres), Amulo advises the Bishop on how to deal with the bones of an unknown saint that were brought to the Church of St. Bénigne in Dijon.
Amulo's Epistula ad Teodboldum was written during a time of civil war, in which the diocese of Dijon was sensitively positioned. Louis the German and Charles the Bald had engaged in combat within the area, and the subsequent devastation profoundly affected the diocese [REF].