Duke Wilhelm in Bavaria Great-grandfather of Empress Elisabeth of Austria (1752–1837) Parents John, Count Palatine of Gelnhausen Sophie Charlotte of Salm-Dhaun Children Duchess Maria Elisabeth in Bavaria Duke Pius August in Bavaria Siblings Luise Christiane of Birkenfeld-Gelnhausen William George of Sayn-Hachenburg Johann Carl Ludwig von Birkenfeld-Gelnhausen Partners Countess Palatine Maria Anna of Zweibrücken-Birkenfeld
