Princess Marie-Cécile of Prussia, is the daughter of Louis Ferdinand, Prince of Prussia, and his wife, Grand Duchess Kira Kirillovna of Russia, maternally, she is a granddaughter of who was later titled, Grand Duchess Victoria Feodorovna of Russia, who is the he third child and second daughter of Alfred, Duke of Saxe-Coburg and Gotha?
Princess Victoria Melita of Saxe-Coburg and Gotha Princess Victoria Melita of Saxe-Coburg and Gotha and Edinburgh , later Grand Duchess Victoria Feodorovna of Russia (25 November 1876 – 2 March 1936) was the third child and second daughter of Alfred, Duke of Saxe-Coburg and Gotha, and Grand Duchess Maria Alexandrovna of Russia. She was a granddaughter of Queen Victoria of the United Kingdom and Emperor Alexander II of Russia.
Princess Louise of Belgium Princess Louise of Belgium (18 February 1858 in Brussels – 1 March 1924 in Wiesbaden) was the eldest daughter of Leopold II and his wife, Marie Henriette of Austria. Louise was named after her paternal grandmother, the Belgian queen Louise of Orleans, and her mother.