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.
Countess Palatine Dorothea Sophie of Neuburg
Born at the , Countess Palatine Dorothea was the fourteenth of seventeen children and her parents' sixth daughter. Her older sisters included: Eleonor Magdalene, consort of Holy Roman Emperor Leopold I; Maria Sofia, consort of Peter II of Portugal; Maria Anna, consort of Charles II of Spain; and Elisabeth, daughter-in-law of John III Sobieski, King of Poland.