Princess Stephanie of Windisch-Graetz's mother was a member of what political party?
Princess Stephanie of Windisch-Graetz Princess Stéphanie of Windisch-Graetz (April 4, 1909 in Ploskovice, Bohemia – May 29, 2005 in Uccle, Belgium) was the daughter of Prince Otto Weriand of Windisch-Graetz (1873–1952) and Archduchess Elisabeth Marie of Austria (1883–1963), only child of Crown Prince Rudolf of Austria and Princess Stéphanie of Belgium. She was the great-grandchild of Emperor Franz-Joseph and Empress Elisabeth ('Sissi') of Austria. She was also the great-grandchild of King Leopold II of Belgium.
Princess Theresa of Bavaria (b. 1931) Archduchess Theresa of Austria, German: "Theresa Monika Valerie Elisabeth Ludovika Walburga Anna, Erzherzogin von Österreich" (born 9 January 1931 at Schloss Wallsee in Amstetten, Lower Austria, Federal State of Austria) is a member of the Tuscan branch of the House of Habsburg-Lorraine and an Archduchess of Austria and Princess of Bohemia, Hungary, and Tuscany by birth. Through her marriage to Prince Rasso of Bavaria, Theresa is also a member of the House of Wittelsbach and a Princess of Bavaria.