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 Maria of Saxe-Weimar, Duchess of Saxe-Zeitz
She married on 3 July 1656 in Weimar with Duke Maurice of Saxe-Zeitz, the youngest surviving son of Elector John George I of Saxony, from his second marriage, with Duchess Magdalene Sibylle of Prussia. They had ten children: