Béatrice de Hainaut1 
Child of Béatrice de Hainaut and Edles I de Roucy, Comte de Roucy et de Reims
- Alix de Roucy, Comtesse de Roucy et de Reims+1 b. c 1020, d. 1062
Guido d’Altavilla, Duca di Amalfi1 
Roberto d’Altavilla1 
Mabille de Hauteville1
Hugues de Grandmesnil1 
He held the office of Sheriff of Leicester.1 He fought in the Battle of Hastings in 1066.1
Children of Hugues de Grandmesnil and Adelize de Beaumont-sur-Oise
- Guillaume de Grandmesnil1 d. 1114
- Robert de Grandmesnil+1 d. 1 Jun 1136
Adelize de Beaumont-sur-Oise1 
Children of Adelize de Beaumont-sur-Oise and Hugues de Grandmesnil
- Guillaume de Grandmesnil1 d. 1114
- Robert de Grandmesnil+1 d. 1 Jun 1136
Robert de Grandmesnil1 
Child of Robert de Grandmesnil and Agnès de Briquessart
Agnès de Briquessart1
Child of Agnès de Briquessart and Robert de Grandmesnil
Guillaume de Grandmesnil1
Child of Guillaume de Grandmesnil and Beatrix of Rye
- Pernel de Grandmesnil+1 b. c 1139, d. 1 Apr 1212
Beatrix of Rye1
Child of Beatrix of Rye and Guillaume de Grandmesnil
- Pernel de Grandmesnil+1 b. c 1139, d. 1 Apr 1212