┌─Arnulf II of Flanders ⇒
┌─Baldwin IV of Flanders
│ └─Rozala of Italy
┌─Baldwin V of Flanders
│ │ ┌─Friedrich im Moselgau of Luxembourg ⇒
│ └─Otgive of Luxembourg
│ └─Irmentrud of Gleiberg ⇒
┌─Baldwin VI of Flanders
│ │ ┌─Hugh Capet King of the Franks ⇒
│ │ ┌─Robert II the Pious King of the Franks
│ │ │ └─Adelaide of Aquitaine
│ └─Adela of France
│ └─Constance of Arles
Baldwin II of Hainault
└─Richilde