┌─Arnulf III of Boulogne ⇒
┌─Baldwin II of Boulogne
┌─Eustace I of Boulogne
│ └─Adelina of Holland
┌─Eustace II of Boulogne
Godfrey of Bouillon
│ ┌─Gothelo I of Loraine
│ ┌─Godfrey III of Loraine
└─Ida of Loraine
└─Doda