Prince Jean of Luxembourg has reigned as Grand Duke since 7 October 2000. He has a twin sister, who currently resides in France.
 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. 
Henri (Luxembourgish: "Henri Albert Gabriel Flix Marie Guillaume" , ] ; born 16 April 1955) is the current Grand Duke of Luxembourg, reigning since 7 October 2000. 
 He is the twin brother of Princess Margaretha. 
