The Russian Imperial Family was split into four main branches named after the sons of Emperor Nicholas I: The Alexandrovichi (descendants of Emperor Alexander II of Russia) (with further subdivisions named The Vladimirovichi and The Pavlovichi after two of Alexander II’s younger sons) The Konstantinovichi (descendants of Grand Duke Constantine Nicholaevich of Russia) The Nikolaevichi (descendants of Grand Duke Nicholas Nikolaevich of Russia) The Mikhailovichi (descendants of Grand Duke Michael Nicolaevich of Russia) The headship of the Imperial Family is in dispute between Grand Duchess Maria Vladimirovna of Russia of the Vladimirovich (Alexandrovichi) and Prince Andrew Andreevich of Russia of the Mikhailovichi branch. In the family trees, a ≈ sign represents a union causing an illegitimate child. Alexandrovichi Emperor Nicholas I (1796-1855) ∞ Princess Charlotte of Prussia (1798-1860) Emperor Alexander II (1818-1881) ∞ Princess Marie of Hesse (1824-1880) Grand Duchess Alexandra Alexandrovna (1842-1849) Tsarevich Nicholas Alexandrovich (1843-1865) Emperor Alexander III (1845-1894) ∞ Princess Dagmar of Denmark (1847-1928) Emperor Nicholas II (1868-1918) ∞ Princess Alix of Hesse (1872-1918) Grand Duchess Olga Nikolaevna (1895-1918) Grand Duchess Tatiana Nikolaevna (1897-1918) Grand Duchess Maria Nikolaevna (1899-1918) Grand Duchess Anastasia Nikolaevna (1901-1918) Tsarevich Alexei Nikolaevich (1904-1918) Grand Duke Alexander Alexandrovich (1869-1870) Grand Duke George Alexandrovich (1871-1899) Grand Duchess Xenia Alexandrovna (1875-1960) ∞ Grand Duke Alexander Mikhailovich (1866-1933) see Mikhailovichi branch Grand Duke Michael Alexandrovich (1878-1918) ∞ Natalia Sergeyevna Sheremetyevskaya (1880-1952) cr. Countess Brasova George Mikhailovich, Count Brasov (1910-1931) Grand Duchess Olga Alexandrovna (1882-1960) ∞ Duke Peter Alexandrovich of Oldenburg (1868-1924) div. ∞ Nikolai Alexandrovich Kulikovsky (1882-1958) Grand Duchess Maria Alexandrovna (1853-1920) ∞ Prince Alfred, Duke of Saxe-Coburg and Gotha (1844-1900) Grand Duke Sergei Alexandrovich (1857-1905) ∞ Princess Elizabeth of Hesse (1864-1918) Vladimirovichi Emperor Nicholas I (1796-1855) ∞ Princess Charlotte of Prussia (1798-1860) Emperor Alexander II (1818-1881) ∞ Princess Marie of Hesse (1824-1880) Grand Duke Vladimir Alexandrovich (1847-1909) ∞ Duchess Marie of Mecklenburg-Schwerin (1854-1920) Grand Duke Alexander Vladimirovich (1875-1877) Grand Duke Cyril Vladimirovich (1876-1938) ∞ Princess Victoria Melita of Edinburgh (1875-1936) Grand Duchess Maria Kirillovna, Princess of Leiningen (1907-1951) cr. Grand Duchess of Russia ∞ Friedrich Karl, Prince of Leiningen (1898-1946) Princess Kira Kirillovna, Princess of Prussia (1909-1967) cr. Grand Duchess of Russia ∞ Prince Louis Ferdinand, Prince of Prussia (1907-1994) Prince Vladimir Kirillovich (1917-1992) cr. Grand Duke of Russia ∞ Princess Leonida Bagration-Moukhransky (1914-2010) Grand Duchess Maria Vladimirovna (b. 1953) ∞ Prince Franz Wilhelm of Prussia (b. 1943)cr. Grand Duke of Russia, div. Grand Duke