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.
Maria Feodorovna (Sophie Dorothea of Württemberg)
In 1773, Sophie Dorothea was among the group of German Princesses considered as possible wives of the heir to the Russian throne, the future Tsar Paul I. However, Sophie of Württemberg was not yet fourteen years old at the time, and Wilhelmina Louisa of Hesse-Darmstadt, a princess of a more appropriate age, was chosen instead.