Mathieu I De Beaumont-Sur-Oise 
Mathieu I De was born in 1080. Mathieu I De's father was Yves III De+ Beaumont-Sur-Oise and his mother was Adelaide De+ Gournay. His paternal grandfather was Yves II De+ Beaumont-Sur-Oise and his paternal grandmother is Emma+ X; his maternal grandparents were Hugh IV De+ Gournay and Basilie De+ Dammartin. He had a sister named Agnes De+. He was the younger of the two children. He died at the age of 75 in 1155.General Notes
SOURCES: LDS FHL Ancestal File #
"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>, 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)
- d.1059
- b.~ 1040 d.> 1083
- b.1080 d.1155
- b.~ 1030 in Gournay-en-Bray, Seine-Inferieure, Normandy, France d.> 1092 in Holy Lands
- b.~ 1055 d.1099
- b.~ 0935
- b.~ 0960
- b.~ 0940
- b.~ 0980 d.15 Nov 1037
- b.< 1038 in Ecouche Castle, Falaise, Calvados, Normandy, France d.> 1093 in Gournai-en-Bray, Seine-Inferieure Normandy, France
- b.BET 939 AND 941 in Paris, Isle De France, France d.24 OCT 996 in Les Juifs, pres de Chartres, France
- b.27 MAR 972 in Orleans, France d.20 Jul 1031 in Melun, France
- b.0944 in Germany d.1004
- b.~ 1010
- b.~ 0955 in Toulouse, France d.Sep 0993
- b.0986 in Toulouse, France d.25 Jul 1032 in Melun, France
- b. in Anjou, France
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‌Mathieu I De and Beatrix De were married in a religious ceremony before 1101. They had two sons named Hugues I De and Mathieu II De.