About Countess Henriette Charlotte of Nassau-Idstein
Henriette Charlotte of Nassau-Idstein (9 November 1693 – 8 April 1734), was a German noblewoman member of the House of Nassau and by marriage Duchess of Saxe-Merseburg.
Born in Idstein Castle, Idstein, she was the fourth of twelve children born from the marriage of George August, Count and since 1688 Prince of Nassau-Saarbrücken-Idstein and Henriette Dorothea of Oettingen-Oettingen.
From her eleven older and younger siblings, only four survived to adulthood: Christine Louise (by marriage Princess of East Frisia), Albertine Juliane (by marriage Hereditary Princess of Saxe-Eisenach), Auguste Fredericka (by marriage Princess of Nassau-Weilburg) and Johannette Wilhelmine (by marriage Countess of Lippe-Detmold).