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The Wedding of Archduke Charles of Austria-Este and Princess Zita of Bourbon-Parma (wearing her Diamond Tiara) at Schloss Schwarzau on this day in 1911. (You can spot the Bourbon-Parma Tiara and the Habsburg Fringe Tiara in the background) The couple became Emperor and Empress of Austria in 1918, only to be deposed two years later. The Emperor died in 1922 and Empress Zita in 1989.