Louis de Saint Denis, Abbot of St Denis, Archchancellor of the Holy Roman Empire, was born circa 800 to Rorgon of Maine (c770-839) and Rotrude (775-810) and died 867 of unspecified causes. Notable ancestors include Charlemagne (747-814). Ancestors are from Germany, Belgium, France.

Louis was the Abbot of St Denis. He was archchancellor to his uncle Louis the Pious and to his cousin Charles the Bald. He has no known children.

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