Ade de Coucy 1168 - after 1199 (b. 1168) Parents Agnes of Hainaut Ralph I, Lord of Coucy Children Diederik III, Heer van Beveren Siblings Isabeau de Coucy Yolande de Coucy Enguerrand III, Lord of Coucy Thomas II de Coucy Agnès de Coucy Robert de Coucy Partners Diederik II, Heer van Beveren