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.
Sophia of Nassau
Sophia and Oscar were married on 6 June 1857 at the Castle in Wiesbaden-Biebrich. Sophia arrived in the city of Stockholm with Oscar on 19 June 1857, and was met by her Swedish Mistress of the Robes, countess Wilhelmina Bonde, and her maid of honor Augusta Jegerhjelm at the ship Travemünde. There they were greeted with salutes, singing and crowds. Sophia was received with great enthusiasm upon her arrival in Sweden. Since the current Crown Princess Louise had become sterile after delivering her last child, and the elder brother of Oscar, Crown Prince Charles, had no son and his daughter was not accepted as heir to the throne under the present constitution, so Sophia was seen as the solution of the succession problem and future Queen. She was dressed in blue at her arrival, and was therefore nicknamed The Blue Duchess. At the palace, she was first presented for the royal court, and then introduced to the royal family in the salon of the queen. Upon meeting the king, who was by then described as almost deranged and placed under the regency of the crown prince, she rushed to him, curtsied and embraced him.