Catherine Antonovna of Brunswick
Catherine Antonovna of Brunswick-Lüneburg was the daughter of Duke Anthony Ulrich of Brunswick and Grand Duchess Anna Leopoldovna of Russia and sister of Ivan VI. Wikipedia
Born: July 15, 1741, Saint Petersburg, Russia
Died: April 9, 1807 (age 65 years), Horsens, Denmark
Parents: Anna Leopoldovna and Duke Anthony Ulrich of Brunswick
Siblings: Ivan VI of Russia