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Facts and Events
References
- ↑ ROGER, in Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families.
- ↑ 2.0 2.1 Orderici Vitalis, and Augustus Le Prevost (ed.). Historiae ecclesiasticae. (Parisiis: Julium Renouard et socios, 1838)
Volume 3, page 281.
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