| b 1182, | ||||
| | | ||||
| Simon III De Montfort, Earl | ||||
| |b 1156 | | | |||
| | | ||||
| | | ||||
| Simon IV De Montfort, Earl | Robert De Beaumont, [Count] | > | ||
| | | Robert II De Beaumont, [Earl] | Isabel Elizabeth De Vermandois | > | | | Robert III De Beaumont, [Earl Leicester] | b 1104 | Ralph De Waiet, Earl of Norfolk |
| | | |b 1130 | Amice De (Uta) Gael_(Waiet), [Countess] | Emma Fitzosborne | > |
| Amice De Beaumont, Countess | d 31 Aug 1190 | b 1108 | Ivo De Grentmesnil | > |
| b 1152 | | | Hugh II De Grentmesnil, Baron | Felia De Gaunt | > |
| Petronilla Grentmesnil | b 1092 | > | ||
| b 1134 | Mrs. Hugh De Grentmesnil | |||
| d 01 Apr 1212 | b 1105 | |||