Prinzessin Olga Marie Friederike Franziska zu Windisch-Graetz was born on March 17, 1853 in Florence, Tuscany, Italy. Her father was Fürst Hugo Alfred Adolf Philipp zu Windisch-Graetz and her mother was Herzogin Luise Marie Helene von Mecklenburg-Schwerin. She married Conte Andrea Mocenigo on October 7, 1876 in Haasberg, Humptrup, Nordfriesland, Schleswig-Holstein, Germany. She died on December 27, 1934 in Gonobitz, Cilli, Styria, Austria, at the age of 81.