Question: When is Augusta Marie Of Holstein-Gottorp's mother's birthday?
Answer: 22 November 1610

Duchess Marie Elisabeth of Saxony (22 November 1610 – 24 October 1684) was duchess consort of Holstein-Gottorp as the spouse of Duke Friedrich III of Holstein-Gottorp. Augusta Marie of Holstein-Gottorp (1649–1728) was a German noblewoman. She was the daughter of Frederick III, Duke of Holstein-Gottorp and Duchess Marie Elisabeth of Saxony