bef 1080 – aft 1140
Father: Guillaume II Gouët, Seigneur de Montmirail abt 1045 – aft 1080
Mother: Eustachie (de Crepon?)
Married: Eustachie (Mabille, Mabel) de Normandie
Father: Henry I of Normandy, King of England 09.1068 – 02.12.1135
Mother: unknown (illegitimate)
Child 01: Guillaume IV Gouët, Seigneur de Montmirail abt 1125 – 1170/1
Child 02: Eustachie Gouët, 1130 – 12.11.1164