Princess Clementine von Metternich-Sándor Winneburg (27 June 1870 – 25 October 1963) was an Austrian aristocrat.
[2] Princess Clementine, a favorite of the Hungarian composer Franz Liszt and a close friend of the famous coloratura soprano Adelina Patti, was the founder of the Catholic charities organization in prewar Austria and devoted her life to charitable activities.
[2] As an adult, she adopted her grand nephew, Prince Franz Albrecht von Hohenlohe-Waldenburg-Schillingsfürst, who was the son of her niece, Princess Elisabeth von Oettingen-Oettingen und Oettingen-Spielberg, and Victor III, Duke of Ratibor.
[3] She abandoned the family estate, the Sándor-Metternich mansion in Bajna, in Hungary in 1947 and spent her last years with Prince Franz.
Prior to her death, the Princess was the last surviving grandchild of Klemens, Prince of Metternich-Winneburg zu Beilstein, the Austrian statesman who organized the Congress of Vienna between November 1814 and June 1815.