Robert De Pierrepont 
Robert De was born about 1168. Robert De's father was Hugues De+ Pierrepont and his mother is Clemence De+ Vitre. His maternal grandparents are Gonthier De+ Vitre and Beatrix De+ Namur. He has a brother and a sister, named William De+ and Beatrice De+. He is the youngest of the three children.General Notes
SOURCES: "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>, 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, and S. Bontron <Brian Tompsett>) 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.~ 1130 in Hurst, Sussex, England d.~ 1188
- b.~ 1168
- b.~ 1110
- b.~ 1132 in Reims, France
- b.~ 0997 d.~ 1063
- b.~ 1048 in Of, Namur, Belgium
- b.~ 1005 d.> 1067
- b.~ 1066 d.19 Aug 1139
- b.~ 0995 in Saxony d.29 Jun 1059
- b.~ 1048 d.31 Jul 1102
- b.~ 1008 in Schweinfurt, Unterfranken, Bavaria d.1059
- b.~ 1110
- b.1005 in Chateau de Salm, Luxembourg d.Aug 1059
- b.~ 1044 d.1086
- b.~ 1017
- b.~ 1081
- b.~ 1000 d.1048 in Thuin
- b.< 1049
- b.> 1010
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They had a son named Jean II De.