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.
Dorothea Marie of Saxe-Gotha-Altenburg
Dorothea Marie of Saxe-Gotha-Altenburg (22 January 1674 – 18 April 1713) was the wife of Ernst Ludwig I, Duke of Saxe-Meiningen. She was the daughter of Frederick I, Duke of Saxe-Gotha-Altenburg and his first wife, Magdalena Sybille of Saxe-Weissenfels. She married Ernst Ludwig I on the 19 September 1704.