Josephine-Charlotte Grandduchess of Luxemburg

Princess Marie of Hohenzollern-Sigmaringen, later Princess Marie of Belgium, Countess of Flanders (Marie Luise Alexandrine Karoline; 17 November 1845 – 26 November 1912) was a Princess of Hohenzollern-Sigmaringen, later simply of Hohenzollern, and mother of King Albert I of Belgium.

Prince Carl of Sweden and Norway, Duke of Västergötland (27 February 1861 in Stockholm – 24 October 1951 in Stockholm), was the third son of King Oscar II of Sweden-Norway and Sophia of Nassau. He was known as "the Blue Prince" (Blå Prinsen) because of the colour of the uniform of the Life Regiment.

Princess Marie-Esméralda of Belgium, Lady Moncada (Marie-Esméralda Adelaide Lilian Anne Léopoldine; born 30 September 1956) is a member of the Belgian Royal Family and the aunt of King Philippe of Belgium. Princess Marie-Esméralda is a journalist, author and documentary-maker. She is also an environmental activist and a campaigner for women’s rights and indigenous people’s rights.

Prince Jean of Luxembourg (given names: Jean Félix Marie Guillaume; born 15 May 1957 at Betzdorf Castle), the second son of Jean, Grand Duke of Luxembourg and Princess Joséphine-Charlotte of Belgium. He is the twin brother of Princess Margaretha. He frequently goes by the name of Jean Nassau.

Princess Margaretha of Liechtenstein (born Princess Margaretha of Luxembourg; 15 May 1957) is the fourth child and second and youngest daughter of Grand Duke Jean of Luxembourg and Princess Joséphine-Charlotte of Belgium. As the sister of Grand Duke Henri of Luxembourg and the sister-in-law of Prince Hans-Adam II of Liechtenstein, she is a princess of two current realms and a member of the Luxembourg and Liechtenstein reigning dynasties.