Archduchess Maria Louise of Austria, princess of Tuscany, daughter of Ferdinand III of Tuscany, and sister of Leopold II of Tuscany. (1798-1856) [Unknown authorUnknown author / https://www.bildarchivaustria.at/Preview/5173852.jpg -- Public domain -- http://commons.wikimedia.org/wiki/File:Arciduchessa Maria Luigia d'Austria, princesa di Toscana (cropped).jpg]