| b 1202, Of, Isle of Wight, Hampshire, England | William De Vernon | Richard De Reviers, [Seigneur] | Emma Fitzosbern | > |
| Baldwin De Rivers, [Earl of Devon] | b 1060 | William 'The_Elder' Peverel, [De Nottingham] | > | |
| | b 1090 | Adelise Peverel | Adeline Mrs Peverel | ||
| William Reviers, [Earl of Devon] | d 04 Jun 1155 | b 1069 | ||
| |b 1128 | | | |||
| |d 10 Sep 1217 | Adeliza Lucia Debaalum | |||
| | | b 1099 | |||
| Joan De Rivers | Robert De Beaumont, [Count] | > | ||
| |William Jun. De Brewere-2 + | Waleran Count Of Meulan, [Earl] | Isabel Elizabeth De Vermandois | > | | | Robert De Beaumont, [Count] | b 1104 | Amaury De Montfort | > |
| | | |b 1130 | Agnes De Montfort, [Countess] | Agnes De Garlende | > |
| Mabel De Beaumont, [Countess] | d Oct1207 | b 1122 | Henry I 'Beauclerc' England, [King] | > |
| b 1170 | | | Rainald De Dunstanville, [Earl] | Sibyl Corbet | > |
| d 01 May 1204 | Maud De Dunstanville, [Countess] | b ABT 1110 1115 | William Fitzrichard | > |
| b 1143 | Beatrice Fitzwilliam, [Countess] | |||
| b 1114 | ||||