PARIS, FRANCE - MAY 05: (L-R) Grande-Duchesse Heritiere Stephanie De Luxembourg, Grand-Duc Heritier Guillaume De Luxembourg and Princess Barbara de Yougoslavie attend the "Revelations" Fair at Balcon d'Honneur du Grand Palais on May 5, 2017 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
PARIS, FRANCE - MAY 05: (L-R) Princess Barbara de Yougoslavie, Grande-Duchesse Heritiere Stephanie De Luxembourg and Grand-Duc Heritier Guillaume De Luxembourg attend the "Revelations" Fair at Balcon d'Honneur du Grand Palais on May 5, 2017 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
PARIS, FRANCE - MAY 05: Prince Charles de Bourbon Parme and Princess Constance de Bourbon Parme attend the "Revelations" Fair at Balcon d'Honneur du Grand Palais on May 5, 2017 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
PARIS, FRANCE - MAY 05: (L-R) Lawyer Alexandre Ursulet, his wife Princess Anne de Bourbon Siciles and Gonzague Saint-Bris attend the "Revelations" Fair at Balcon d'Honneur du Grand Palais on May 5, 2017 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
PARIS, FRANCE - MAY 05: (L-R) Prime Minister of Luxembourg Xavier Bettel, Grand-Duc Heritier Guillaume and Grande-Duchesse Heritiere Stephanie De Luxembourg attend the "Revelations" Fair at Balcon d'Honneur du Grand Palais on May 5, 2017 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
