┌─Otto I Margrave of Brandenberg
┌─Albert II Margrave of Brandenberg
│ │ ┌─Floris III of Holland
│ └─Ada of Holland
│ │ ┌─Henry of Scotland ⇒
│ └─Ada of Scotland
│ └─Ada de Warenne ⇒
Elizabeth of Brandenberg
└─Matilda of Groitzsch