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Books about Hildoard:
De Stad En De Heerlijkheid Van Dendermonde: De Hh. Hildoard En Cristiana... (Dutch Edition) by Alphons Lodewijk De Vlaminck (Feb 3, 2012)
Wiki information Hildoard:
Hildoard 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...