| | RogerIV deToeni Lord of Flamstead 1160–1208 Constance deBeaumont …–1226 | | | | Marguerite deBeaumont 1125–1185 | | | | RogerIII deConches 1104–1158 Gertrude Ida deHainault …–… | | | | RalphIV deConches 1079–1126 Alice of Northumberland 1104–1158 | | |
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| | | RobertII deBeaumont Earl of Leicester 1104–1168 | | | | Robert deBeaumont Earl of Leicester 1040–1118 Isabel deVermandois 1085–1130 | | |
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| | | Richard Viscompte of Maine …–1194 | | | | Roscelin deBeaumont Vicompte de Maine 1094–1145 Constance of England 1098–… | | | | RalphII Vicompte de Beaumont 1072–… |
| | | HenryI Beauclerc King of England 1068–1135 | | |
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