Cecilie, Alexandrine and Friedrich Franz of Mecklenburg-Schwerin with their mother Grand Duchess Anastasia. Born on 20 September 1886 in Schwerin, Cecilie was the youngest daughter of Frederick Francis III, Grand Duke of Mecklenburg-Schwerin and Grand Duchess Anastasia Mikhailovna of Russia . 
Marie Alexandrine Elisabeth Eleonore was born a duchess of the Grand Ducal House of Mecklenburg to Frederick Francis II, Grand Duke of Mecklenburg-Schwerin - the then Grand Duke of Mecklenburg-Schwerin and his first wife, Princess Augusta Reuss of Köstritz (1822–1862) - in the Schloss Ludwigslust.
Princess Elisabeth of Denmark, RE (Elisabeth Caroline-Mathilde Alexandrine Helena Olga Thyra Feodora Estrid Margrethe Désirée; 8 May 1935 – 19 June 2018) was a member of the Danish royal family. She was the only daughter and eldest child of Hereditary Prince Knud and Hereditary Princess Caroline-Mathilde of Denmark , and a first cousin of the present Danish monarch , Queen Margrethe II .
Grand Duchess Elena Vladimirovna of Russia (29 January 1882 – 13 March 1957), sometimes known as Helen, Helena, Helene, Ellen, Yelena, Hélène, or Eleni, was the only daughter and youngest child of Grand Duke Vladimir Alexandrovich of Russia and Duchess Marie of Mecklenburg-Schwerin.
Princess Louise Marie Elisabeth of Prussia (German: Luise; 3 December 1838 – 23 April 1923) was Grand Duchess of Baden from 1856 to 1907 as the wife of Grand Duke Frederick I. Princess Louise was the second child and only daughter of Wilhelm I, German Emperor , and Augusta of Saxe-Weimar-Eisenach .
Before her death, her husband had been building a new residential palace; once she died, Frederick named the new building the Elisabeth-Anna-Palais in her honor. On 24 October 1896, Frederick Augustus married Duchess Elisabeth Alexandrine of Mecklenburg-Schwerin, a daughter of Frederick Francis II, Grand Duke of Mecklenburg.
Grand Duchess Maria Alexandrovna of Russia (Russian: Мария Александровна; 17 October [O.S. 5 October] 1853 – 24 October 1920) was the fifth child and only surviving daughter of Emperor Alexander II of Russia and Princess Marie of Hesse and by Rhine; she was Duchess of Edinburgh and later Duchess of Saxe-Coburg and Gotha as the wife of Alfred, Duke of Saxe-Coburg and Gotha.