- Born on July 22, 1136 in Argentan
- Deceased on January 30, 1164 in Rouen, at the age of 27 years
- Burial at cathédrale Notre-Dame de l'Assomption
Parents
- Geoffroy V d'Anjou, Geoffroy Plantagenêt (1113 - 1151), duc de Normandie
- Mathilde de Normandie, Mathilde l'Emperesse (1102 - 1167), dame de Chambois
Family
- Married with Constance de Penthièvre, dame de Mur, fondatrice de l'abbaye de Bonrepos, without issue.
Occupations
- vicomte de Dieppe