Frederica Louisa of Hesse-Darmstadt1751 - 1805 Born Sat, 16 October 1751 Prenzlau Died Mon, 25 February 1805 Berlin Details Parents Queen of Prussia Friederike Luise Lived 53 years, 4 months, 9 days father Louis IX 1719 - 1790 mother Caroline of the Palatinate-Zweibrücken 1721 - 1774 Siblings Sister Caroline of Hesse-Darmstadt 1746 - 1821 Brother Louis I 1753 - 1830 Sister Amalie of Hesse-Darmstadt 1754 - 1832 Sister Natalia Alexeievna 1755 - 1776 Sister Louise of Hesse-Darmstadt 1757 - 1830 Brother Frederick 1759 - 1802 Brother Christian of Hesse-Darmstadt 1763 - 1830