Guillaume III De Bethune 
Guillaume III De was born about 1240. Guillaume III De's father was Guillaume II De Bethune and his mother is Beatrice De Hebuterne. His paternal grandfather was Guillaume III (I) De+ Bethune and his paternal grandmother is Elizabeth De Roesbrugge. He was an only child. He died about 1279.General Notes
SOURCES: LDS FHL Ancestral File # (familysearch.org)
"Ancestors/Descendants of Royal Lines" (Contributors: F. L. Jacquier (History of Charlemagne by Christian Settipani); L. Orlandini, Manuel Abranches de Soveral, Reynaud de Paysac, F.L. J P de Palmas (Aurejac et Tournemire; Frankish line; The Complete Peerage}, Jacquier (Genealogy of Lewis Carroll, Justin Swanstrom, The Royal Families of England Scotland & Wales by Burkes Peerage; Debrett's Peerage & Baronage; Table of descendants French Canadian Genealogical Society; Families of Monfort-sur-Risle & Bertrand de Bricquebec; The Dukes of Normandy, XXXXI), A. Brabant ("Dynastie Montmorency, Michel d'Herbigny), Paul Leportier, Claude Barret, H.R. Moser (Burke Peerage), O.Guionneau, L.B. de Rouge, E. Polti, N. Danican (Britain's Royal Families; Buthlaw, Succession of Strathclyde, the Armorial 1961-62) A.Terlinden (Genealogy of the existing British Peerage, 1842), L. Gustavsson, C. Cheneaux, E. Lodge, S. Bontron (Brian Tompsett), R. Dewkinandan, H. de la Villarmois, C. Donadello; Scevole de Livonniere, H. de la Villarmois, I. Flatmoen, P. Ract Madoux (History of Morhange; Leon Maujean; Annuaire de Lorraine, 1926; La Galissonniere: Elections d'Arques et Rouen), Jean de Villoutreys (ref: Georges Poull), E. Wilkerson-Theaux (Laura Little), O. Auffray, A. Brabant (Genealogy of Chauvigny of Blot from "Chanoine Prevost Archiviste du Diocese de Troyes Union Typographique Domois Cote-d'Or 1925), Emmanuel Arminjon (E Levi-Provencal Histoire de l'Espagne Andalouse), Y. Gazagnes-Gazanhe, R. Sekulovich and J.P. de Palmas ("notes pierfit et iconographie Insecula", Tournemire), H de Riberolles (Base Tournemire), Franck Veillon; ,(Histoire Généalogique de la Maison de Hornes, Bruxelles 1848; Notice Historique Sur L'Ancien Comté de Hornes, Gand 1850; Europäische Stammtafeln, Marburg 1978); E.Driant / "La Maison de Damas" par Hubert Lamant, 1977 (Bibliothèque municipale d'Eaubonne)
........... http://geneastar.org.
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Ancestor Pedigree Chart
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*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)
- b.~ 1100 in Bethune, Artois/Pas-de-Calais, France d.1138
- b.> 1130 in Bethune, Artois/Pas-de-Calais, France d.10 Jan 1191 in Battle of Acre, Palestine
- b.~ 1102 in Cambray, Nord-Pas-de-Calais, France d.< 1165
- b.~ 1158 in Bethune, Pas-de-Calais, Normandy, France d.1213
- b.~ 1090 in St. Pol., Nord, Nord-Pas-de-Calais, France d.1141
- b.~ 1130 in St. Pol., Normandy, France d.~ 1192
- b.~ 1105
- b.~ 1184 in Meulebeke, Flandre-Ouest, Belgium d.24 Aug 1243 in Lokeren, Flandre-Orientale, Belgium
- b.~ 1135 in Tenremonde, Lille, Nord, France d.18 Apr 1224
- b.~ 1166 in France d.01 Apr 1244
- b.~ 1133
- b.~ 1150 in Molembeque, Rosoy, Oise, Picardy, France
- b.~ 1133 in Rumingy, Ardennes, France d.> 1211
- b.~ 1217 d.> 1247
- b.~ 1185
- b.~ 1240 d.~ 1279
- b.~ 1220
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They had a son named Guillaume IV De.