 King Leopold I of the Belgians was her younger brother, while Queen Victoria of United Kingdom was her niece and King Ferdinand II of Portugal was her nephew.Empress Catherine II of Russia began to search a suitable wife for her second grandson, Grand Duke Konstantin after the marriage of her eldest grandson, Grand Duke Alexander, with Louise of Baden in 1793.The empress spoke of pride about the young grand duke as an enviable match for many brides in Europe, as he was the second in line to succession to the Russian Empire.