Eldest child of Grand Duke Kirill Vladimirovich of Russia and Princess Victoria Melita of Saxe-Coburg-Gotha; wife of Karl, 6th Prince of Leiningen
Maria Kirillovna of Russia (2 February 1907 – 25 October 1951) was the eldest daughter of Grand Duke Kirill Vladimirovich of Russia and Princess Victoria Melita of Edinburgh. She w... Wikipedia