┌─Albert II of Namur ⇒
┌─Albert III of Namur
┌─Godfrey of Namur
│ └─Ida of Saxony
┌─Heinrich of Namur
│ │ ┌─Giselbert of Luxembourg ⇒
│ │ ┌─Konrad of Luxembourg
│ └─Ermasinde of Luxembourg
│ └─Clementia of Poitou
Ermesinde of Luxembourg
│ ┌─Heinrich of Gelders
└─Agnes of Gelders