Hildoard or Hildo,Hildoardus, Hildoward, Hildeguard, Hildus. was bishop of Cambrai from 790 to 816.
He was a liturgical reformer, closely tied to the court of Charlemagne. His sacramentary is the only surviving exact copy, made around 812, of the Sacramentarium Hadrianum, sent out by Pope Hadrian I to Charlemagne. Yitzhak Hen, Culture and Religion in Merovingian Gaul, A.D. 481-751 (1995), note p. 58.John Michael Wallace-Hadrill, The Frankish Church (1983), p. 212.
He restored Maubeuge Abbey.
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