Younger daughter of Grand Duke Kirill of Russia and of Princess Victoria Melita of Saxe-Coburg-Gotha; wife of Prince Louis-Ferdinand of Prussia
Kira Kirillovna of Russia (9 May 1909 – 8 September 1967) was the second daughter of Grand Duke Kirill Vladimirovich of Russia and Princess Victoria Melita of Saxe-Coburg and Gotha... Wikipedia