Princess Stephanie of Windisch-Graetz's mother was a member of what political party?
Archduchess Elisabeth Marie of Austria Archduchess Elisabeth Marie of Austria (Elisabeth Maria Henriette Stephanie Gisela; 2 September 1883 – 16 March 1963) was the only child of Rudolf, Crown Prince of Austria and Princess Stéphanie of Belgium, and a granddaughter of Emperor Franz Joseph I of Austria and King Leopold II of the Belgians. She was known to the family as "Erzsi", a diminutive of her name in Hungarian. Later nicknamed "The Red Archduchess", she was famous for becoming a socialist and a member of the Austrian Social Democratic Party.
Princess Amalia of Nassau-Dietz Princess Amalia of Nassau-Dietz (Anna Charlotte Amalie; 23 October [O.S. 13 October] 1710 – 18 September 1777) was the wife of Frederick, Hereditary Prince of Baden-Durlach, and mother of Charles Frederick, the first Grand Duke of Baden.