Happy Birthday to Archduchess Marie Astrid of Austria, who turns 65 today! The oldest daughter of Grand Duke Jean of Luxembourg and Princess Joséphine Charlotte of Belgium, she is the eldest sister of Grand Duke Henri of Luxembourg. Growing up in Luxembourg, Princess Marie Astrid also studied in Belgium, receiving her diploma as a registered nurse in 1974, and receiving a nursing certificate in tropical medicine from the Prince Leopold Institute in 1977. In 1982, she married Archduke Carl-Christian of Austria, a grandson of Emperor Karl and Empress Zita of Austria. The couple have five children and a growing number grandchildren. Archduchess Marie-Astrid does not undertake many official duties, though she does attend many family events. I wish HRH a very Happy Birthday and Many Happy Returns!