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.
Princess Sophia of the United Kingdom
Conversely, Anthony Camp challenges the belief that Sophia had a child and provides a detailed summary of the available evidence. In his book "Royal Babylon: the Alarming History of European Royalty", author Karl Shaw writes of the possibility that the Duke raped his sister, citing evidence from Charles Greville's diaries, as well as other factors. Historian Gillian Gill believes that Sophia secretly gave birth to the child and that this is the reason Sophia never married. Alison Weir and others, however, write of a possible marriage between Sophia and Garth the same year as the child's birth, but there is no evidence to back this assertion other than the presence of a wedding ring in a portrait of an aged Sophia.