According to her Wikipedia article, Augusta Wilhelmine was born at Darmstadt, the fourth daughter and ninth child of Prince Georg Wilhelm of Hesse-Darmstadt (second son of Louis VIII, Landgrave of Hesse-Darmstadt) and Maria Louise Albertine of Leiningen-Falkenburg-Dagsburg.
On 30 September 1785, in Darmstadt, Augusta Wilhelmine married Maximilian, Count Palatine of Zweibrücken (later King Maximilian I Joseph of Bavaria). They had five children:
• Prince Ludwig (1786–1868), married Therese of Saxe-Hildburghausen,
• Princess Augusta Amalia Ludovika, (21 June 1788 – 13 May 1851), married Eugène de Beauharnais, Duke of Leuchtenberg, Prince of Eichstätt,
• Princess Amalie Marie Auguste (9 October 1790 – 24 January 1794), died in childhood,
• Princess Caroline Augusta (8 February 1792 – 9 February 1873), married William I of Württemberg, and then Francis II of Austria (becoming Empress Elisabeth’s nemesis mother-in-law, and
• Prince Karl Theodor Maximilian (7 July 1795 – 16 August 1875) who morganatically married Marie-Anne-Sophie Petin.
