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 Josephine of Baden Princess Josephine Friederike Luise of Baden (21 October 1813 – 19 June 1900) was born at Mannheim, the daughter of Charles, Grand Duke of Baden and his wife, Stéphanie de Beauharnais. Through her eldest son Leopold, she is the ancestress of the Romanian royal family and the Yugoslav Royal Family. Through her daughter Marie, she is also the ancestress of the Belgian royal family and the Grand Ducal family of Luxemburg.