| | Robert Blanchmains Harcourt [Earl of Leicest 1121–1190 Petronilla (Pernel) Grentmesnil 1134–1212 | | |
| | Robert Bossu De Beaumont [Earl of Leicest 1104–1168 Amice De (Uta) Gael (Waiet) [Countess of Lei 1100– | | |
| | Robert De Beaumont [Count of Meulan 1046–1118 Isabel (Elizabeth) De Vermandois 1081–1131 | | |
| | Adeliza Meulent [Countess of Meu 1014–1081 Roger De Beaumont 1022–1094 | | |
| | Waleran Count of Meulan 990–1069 | | | | Mrs-Jean De Conteville 974– |
| | | Robert Count of Meulan 965– | | | | | Gauthier II "le Vexin 944–1027 Alix Or Adele Senlis 944– | | | | Gautier I, Count Vexin 919–944 Adele Countess of Vexin 924– |
| | | Mrs-Bormard De Senlis 924– |
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