William Fierabras, Count of Poitiers and Duke of Aquitaine
↑ successor in Aquitaine. He abdicated to the abbey of Saint-Cyprien in Poitiers and left the government to his son. ... am not sure that William II is the son of Gerloc (N.a., n.d.).
Boaz, A. (2014). "William I (III) Duke of Aquitaine and Count of Poitou." Specific Ancestral Lines of the Boaz, Paul, Welty & Fishel Families, (pp.725). Otter Bay Books, LLC. Books.
N.a. Some Descendants of Charlemagne. N.p.
Palgrave, F. (1857). The History of Normandy and of England: The three first dukes of Normandy: Rollo, Guillaume-Longue-Epée, and Richard-Sans-Peur. The Carlovingian line supplanted by the Capets. J.W. Parker and Son. Google Books.
Van-Houts, E. (2000). "The Normans and their neighbors." The Normans in Europe, (pp.182). Manchester University Press. Google Books.
Weis, F.L. (2004). Ancestral Roots of Certain American Colonists who Came to America Before 1700: Lineages from Alfred the Great, Charlemagne, Malcolm of Scotland, Robert the Strong, and Other Historical Individuals. Baltimore: Genealogical Publishing Co. Google Books
Poitou-1 and Normandie-81 appear to represent the same person because: Guillaume d'Aquitaine married Gerloc de Normandie who took the name Adela when baptized. There is only evidence for one marriage for the duke.