Robert IV Bertrand-Briquebec 
Robert IV was born about 1189. Robert IV's father is Robert III Bertrand-Briquebec and his mother is Jeanne De Tesson. His paternal grandfather was Robert II De Bertrand-Briquebec and his paternal grandmother is Adelize D' Aumale; his maternal grandfather was Jourdain De Tesson and his maternal grandmother is Letice De Cotentin. He was an only child. He died after 1208.General Notes
SOURCES: LDS FHL Ancestal File # (familysearch.org)
"Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, F.L. 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, Paul Leportier>, H.R. Moser <Burke Peerage>, L. Orlandini, O.Guionneau, L.B. de Rouge, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842>, L. Gustavsson, C. Cheneaux, E. Lodge, S. Bontron <Brian Tompsett>, R. Dewkinandan, C. Donadello) 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.~ 1105 d.1138 in Battle of l'Orne.
- b.< 1139
- b.~ 1030 d.Apr 1096
- b.~ 1061 d.1127
- b.~ 1003 in Normandy d.22 Jul 1035 in Nicea, Bithynia, Turkey
- b.~ 1027 in Normandy, France d.< 1090
- b.~ 1003 in Falaise, Normandy
- b.~ 1110
- b.1025 d.1086
- b.~ 1050
- b.~ 1030
- b.~ 1090
- b.~ 1060
- b.~ 1189 d.> 1208
- b.~ 1030
- b.~ 1075
- b.~ 1005 in Falaise, Normandy
- b.~ 1040
- b.~ 1115 d.1178
- b.~ 1080
- b.~ 1153
- b.~ 0970 in Saint Sauveur, Normandy, France d.1047 in France (died destitute)
- b.~ 1030 d.> 1104
- b.~ 0988 in Eu, DIeppe, Seine-Inferieure, Normandy, France
- b.~ 1075 d.< 1130
- b.~ 1035
- b.~ 1115
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They had a son named Robert V.