Duchess Frederica of Württemberg was a daughter of Frederick II Eugene, Duke of Württemberg and Friederike Dorothea of Brandenburg-Schwedt. Wikipedia
Born: July 27, 1765, Trzebiatów, Poland
Died: November 24, 1785 (age 20 years), Vienna, Austria
Grandchildren: Peter II, Grand Duke of Oldenburg, Duke Peter of Oldenburg, Amalia of Oldenburg, and more
Great grandchildren: Frederick Augustus II, Grand Duke of Oldenburg, Duchess Alexandra of Oldenburg, Duke Alexander Georgievich of Oldenburg, and more