The following eight lines of descent are from Adela of Normandy, daughter of William the Conqueror.
1. William I 2. Adela of Normandy 3. Stephen of England 4. Marie I, Countess of Boulogne 5. Mathilde of Flanders 6. Henry II, Duke of Brabant 7. Henry I, Landgrave of Hesse 8. Otto I, Landgrave of Hesse 9. Louis the Junker of Hesse 10.