Two children, Wilhelm and Adelheid, emerged from a Friedeleheid with the Norman Duke Robert I. Herleva and her family gained reputation and wealth through their association with Robert. Shortly after the birth of the second child, she was married to Robert's friend and feudal husband, Count Herluin von Conteville , in 1031 . She bore him four daughters and two sons.
After Robert's death in Nicaea in 1035 during a pilgrimage, their common, illegitimate son, Wilhelm II, took over the succession to the throne and thus the reign over Normandy. William ended Anglo-Saxon rule in England in 1066 and became the first Norman King of England.
Together with Robert I of Normandy
- Wilhelm II./I. (1027–1087) ⚭ 1051 Mathilde of Flanders
- Adelheid (1030-1082) ⚭ 1st Count Enguerrand II of Ponthieu-Aumale († 1053) | ⚭ 2. Count Lambert von Lens-Aumale († 1054 fallen) | ⚭ 3. Count Odo III. of Aumale and Lord of Holderness († 1096)
Together with Count Herluin von Conteville .
- Robert von Mortain (1031-1090) ⚭ Mathilde von Montgommery
- Emma (* 1032) ⚭ Richard Goz , Vice Count of Avranches
- Isabella (* 1033)
- Odo , Bishop of Bayeux (1035–1097) ⚭ Joan of Bayeux
- Muriel (* 1038)
- Mathilde (* 1039)
- The Baronetage of England, page 114
|ALTERNATIVE NAMES||Arlette; Harlette|
|BRIEF DESCRIPTION||Mother of the later English King Wilhelm I.|
|DATE OF BIRTH||1003|
|PLACE OF BIRTH||Falaise|
|DATE OF DEATH||1050|
|Place of death||Grestain|