Maria Feodorovna (Sophie Dorothea of Württemberg)
Sophie Dorothea arrived in St Petersburg that September, converted to the Russian Orthodox Church, and took the name Maria Feodorovna. She married Paul on 26 September 1776. In spite of her husband's difficult character, Maria Feodorovna made a success of her marriage. During the long reign of her mother-in-law, the Russian Empress, Catherine II, Maria and Paul were completely excluded from any political influence, as mother and son mistrusted each other. Maria Feodorovna sided with her husband and lost the initial affection Catherine II had for her. Paul and Maria were forced to live in isolation at Gatchina, but they were devoted to each other and had ten children including: Tsar Alexander I, Tsar Nicholas I of Russia, Grand Duchess Maria of Saxe-Weimar-Eisenach, Queen Catherine of Wurttemberg and Queen Anna Pavlovna of the Netherlands.
Frederica of Hanover
Prince Paul of Greece, her mother's paternal first cousin, proposed to her during the summer of 1936, while he was in Berlin attending the 1936 Summer Olympics. Paul was a son of King Constantine I and Frederica's grand-aunt Sophia. Their engagement was announced officially on 28 September 1937, and Britain's King George VI gave his consent pursuant to the Royal Marriages Act 1772 on 26 December 1937. They married in Athens on 9 January 1938. Frederica became Hereditary Princess of Greece, her husband being heir presumptive to his childless elder brother, King George II.