About Countess Palatine Maria Anna of Zweibrücken-Birkenfeld
Countess Palatine Maria Anna of Zweibrücken-Birkenfeld-Bischweiler (18 July 1753 – 4 February 1824) was Countess Palatine of Birkenfeld-Gelnhausen and Duchess in Bavaria, through her marriage to Duke Wilhelm in Bavaria.
Maria Anna was a great-grandmother of Empress Elisabeth of Austria through his son Duke Pius August in Bavaria