Louis I, Grand Duke of Hesse
In 1776, he became engaged to Sophie Dorothea of Württemberg, eldest daughter of Frederick II Eugene, Duke of Württemberg. The engagement was broken off so that Sophia Dorothea could marry Louis's recently widowed brother-in-law Tsarevich Paul Petrovich, son and heir of Catherine II "the Great", Empress of Russia. He received a monetary compensation when the engagement was broken.
Prince Paul of Württemberg
Paul and Friederike had a daughter named Adhelaide Paulina, alias Karoline, von Rothenburg (28 November 1805, Frankfurt am Main - 13 February 1872, Frankfurt am Main). On 16 February 1836, in Augsburg, Karoline married Karl, Baron von Pfeffel (22 November 1811, Dresden - 25 January 1890, Munich).