Prince Pierre d'Arenberg, 4th Duke of Arenberg French nobleman (b. 1961) Parents Margaret de Crussol d'Uzès Prince Charles d'Arenberg, 3rd Duke of Arenberg Children Princess Aliénor d’Arenberg Siblings Muffie Woodward Stewart Bancroft Partners Marie Christine Kraff de Laubarède Princess Silvia d’Arenberg, Duchess of Arenberg