Matilda of Saxony Countess of Perche, Lady of Coucy (1172–1209) Parents Henry the Lion Matilda of England, Duchess of Saxony Children Thibaut du Perche Thomas, Count of Perche Geoffrey du Perche Siblings Gertrude of Bavaria Henry V, Count Palatine of the Rhine Otto IV, Holy Roman Emperor William of Luneburg Rixa von Sachsen Ingibiorg von Sachsen son von Sachsen Maud von Braunschweig Eleanor von Sachsen Lothaire von Sachsen Partners Enguerrand III, Lord of Coucy Geoffrey III, Count of Perche