Background
She was the great-granddaughter of Emperor Franz Joseph of Austria-Hungary. Agnes Christina Franziska Karoline Theresia Raphaela Johanna Magdalena Huberta Josepha Ignatia, Erzherzogin von Österreich, Prinzessin von Toskana, was the second child and eldest daughter of Archduke Hubert Salvator of Austria and his wife Princess Rosemary of Salm-Salm. She was born on 14 December 1928 at Schloss Persenbeug in Persenbeug-Gottsdorf, Lower Austria, Austria.
Agnes Christina married Prince Karl Alfred of Liechtenstein, third child and second-eldest son of Prince Aloys of Liechtenstein and his wife Archduchess Elisabeth Amalie of Austria, on 17 February 1949 at Schloss Persenbeug in Persenbeug-Gottsdorf, Lower Austria, Austria.