┌─Otto I Margrave of Brandenberg
┌─Albert II Margrave of Brandenberg
│ │ ┌─Floris III of Holland
│ └─Ada of Holland
│ └─Ada of Scotland ⇒
┌─John I Margrave of Brandenberg
│ └─Matilda of Groitzsch
Albert of Brandenberg
│ ┌─Albert I Duke of Saxony
└─Brigitte Jutta of Saxony
└─Agnes of Austria