Princess Mary was quite close to her eldest brother, and she shared his antipathy toward his wife, their cousin Caroline of Brunswick. When the latter left for Italy, Princess Mary congratulated her brother "on the prospect of a good riddance. Heaven grant that she may not return again and that we may never see more of her."
Augusta Viktoria of Schleswig-Holstein-Sonderburg-Augustenburg: 2. Louis Ferdinand, Prince of Prussia: 10. Frederick Francis III, Grand Duke of Mecklenburg-Schwerin: 5. Duchess Cecilie of Mecklenburg-Schwerin: 11. Grand Duchess Anastasia Mikhailovna of Russia: 1. Princess Kira of Prussia: 12. Grand Duke Vladimir Alexandrovich of Russia: 6.
Crown Princess of Prussia 8 November 1746-18 February 1840 Married Frederick William, Crown Prince of Prussia and had issue The marriage was dissolved in 1769 Friederike: 8 April 1748-22 January 1758 Died in childhood Augusta Dorothea Abbess of Gandersheim 2 October 1749-10 March 1810 Maximilian Julius Leopold: 11 October 1752-24 April 1785
In 1975, Princess Alice was the first woman to be appointed a Dame Grand Cross of the Order of the Bath. In 1981, she first published her memoirs under the title The Memoirs of Princess Alice, Duchess of Gloucester. In 1991, she released a revised edition as Memories of Ninety Years.
Princess Hermine Caroline Wanda Ida Luise Feodora Viktoria Auguste of Schönaich-Carolath (9 May 1910 – 30 May 1959), married Hugo Herbert Hartung. Prince Ferdinand Johann Georg Hermann Heinrich Ludwig Wilhelm Friedrich August of Schönaich-Carolath (5 April 1913 – 17 October 1973), married Rose Rauch (1912-1987), then Baroness Margarethe von Seckendorff (1908-1991).
Augusta Louisa Catherine of Saxe-Weimar-Eisenach (30 September 1811 – 7 January 1890), who became German Empress after marrying William I, German Emperor (1797–1888) and had issue. Charles Alexander Augustus John, Grand Duke of Saxe-Weimar-Eisenach (24 June 1818 – 5 January 1901), who inherited his father's throne, married Princess Sophie of the Netherlands (1824–1897) and had issue.
Princess Caroline was heiress presumptive to the crown of Monaco until the birth of her brother's legitimate children. There is precedent for a Monégasque prince to adopt his own illegitimate child and thereby place that child at the head of the line of succession to the Monegasque throne , as was done for Caroline's grandmother, Princess Charlotte, Duchess of Valentinois .