Another correction that needs to be made is Sibylla and Isabella need to be merged and husband William of Normandy and Willian Clito need to be merged.
References: Heraldry of the Royal Families of Europe, by Louda Jiri & Michael Maclagan, p.15; Blood Royal. Issue of te Kings and Queens of Medieval England, by Thelma Annamarylis Leese, p.3, 4; Europaische Stammtafeln, Neue Folge Bd. II, by Detley Schwennicke, Table 7, 81; Die Nachkommen Karls des GroBen, by Erich Brandenburg, XIII 44a.