Born: April 28, 1936, Uccle, Belgium
Died: September 25, 2008 (age 72 years), Ottignies-Louvain-la-Neuve, Belgium
Great-grandparents: Jacques Albert Bernard Joseph Ghislain d'Udekem d'Acoz, Alice Marie de Kerchove, Laurence de Serret, and more
Grandparents: Maximilien d'Udekem d'Acoz, Maria van Eyll, Madeleine de Thibault de Boesinghe, and more
Spouse: Anna Maria Komorowska (m. 1971)
Grandchildren: Princess Elisabeth, Duchess of Brabant, Princess Eléonore of Belgium, Prince Gabriel of Belgium, and more