"Maria Augusta Nepomucena Antonia Francisca Xaveria Aloysia (German: Maria Augusta Nepomucena Antonia Franziska Xaveria Aloysia; Polish: Maria Augusta Nepomucena Antonia Franciszka Ksaweria Alojzia) of Saxony (born Dresden, 21 June 1782; died Dresden, 14 March 1863) of the House of Wettin was the daughter of Frederick Augustus I of Saxony and Amalie of Zweibrücken-Birkenfeld.
Her father, Frederick Augustus, was the King of Saxony and prince of the Duchy of Warsaw. She was his only child to reach adulthood. Her family had a claim to the throne of Poland (Polish–Lithuanian Commonwealth) and the Constitution of 3 May 1791 named her as a potential successor to the Polish throne if the male line of the Wettin family were to end. In Poland, she was called the "infanta of Poland" and a marriage for her considered with Stanisław Poniatowski, a nephew of the Polish king. Her father´s hesitation in accepting this proposal and the subsequent Partitions of Poland prevented this from occurring. After the formation of the Duchy of Warsaw, she was widely regarded as her father´s successor there, despite the fact that the Duchy was bound by Salic law." - (en.wikipedia.org 12.06.2020)