Career
Born in Zerbst, she was the eleventh of fourteen children born from the marriage of John VI, Prince of Anhalt-Zerbst and Sophie Augusta of Holstein-Gottorp. In Zerbst on 11 October 1685, Sophie Auguste married Johann Ernst III, Duke of Saxe-Weimar. They had five children, of whom only two survive adulthood:
John William, Hereditary Prince of Saxe-Weimar (Weimar, 4 June 1686 - Weimar, 14 October 1686).
Ernest Augustus I, Duke of Saxe-Weimar (Weimar, 19 April 1688 - Eisenach, 19 January 1748), later inherited Eisenach and Jena.
Eleonore Christiane (Weimar, 15 April 1689 - Weimar, 7 February 1690). Johanna Auguste (Weimar, 6 July 1690 - Weimar, 24 August 1691).
Johanna Charlotte (Weimar, 23 November 1693 - Weimar, 2 March 1751). Sophie Auguste died in Weimar, aged 31.
She was buried in the Fürstengruft, Weimar.