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.
Sophie of Pomerania, Duchess of Pomerania
As Eric refused to allow Sophia any of the political power over the territories he acquired through her, which she felt she was entitled to, the couple separated. Sophia moved to Rügenwalde Castle with her children and her lover, Hans of Maszerski. In 1470, she refused to finance her husband's war with Brandenburg. She was widowed in 1474.