Grand Duke Andrei Vladimirovich of Russia
Grand Duke Andrei Vladimirovich of Russia ((14 May 1879 – 30 October 1956) was a son of Grand Duke Vladimir Alexandrovich of Russia, a grandson of Emperor Alexander II and a first cousin of Nicholas II, Russia’s last Tsar.
In 1900, he began an affair with the famous ballerina Mathilde Kschessinska, becoming the third grand duke to fall for her.
Grand Duke Andrei followed a military career and graduated from the Alexandrovskaya Military Law academy in 1905.
He occupied different military positions during the reign of Tsar Nicholas II, but with no particular distinction.
He became senator in 1911 and was appointed Major General in the Russian Army in 1915.
He took part in World War I, but was away from real combat spending most of the conflict at Russia's headquarters or in idle time in Saint Petersburg.
In February 1917, shortly before the fall of the Russian monarchy, Grand Duke Andrei left Saint Petersburg to join his mother in Kislovodsk.
He remained in the Caucasus for the next three years.
After the October Revolution he was briefly arrested along with his brother, Grand Duke Boris, but they escaped.
He departed revolutionary Russia in March 1920, being the last grand duke to leave for exile.
In 1921, he married his longtime mistress Mathilde Kschessinska and recognized her son as his.
The couple lived in the South of France until 1929 when they moved permanently to Paris, where Kschessinska opened a ballet school.
After World War II, Grand Duke Andrei lived under reduced circumstances.
Until his death at age 77, he was the last surviving Russian grand duke born in Imperial Russia.
Grand Duke Nicholas Konstantinovich of Russia
Grand Duke Nicholas Constantinovich of Russia( 14 February 1850 – 26 January 1918) was the first- born son of Grand Duke Konstantin Nikolayevich and Grand Duchess Alexandra Iosifovna of Russia and a grandson of Nicholas I of Russia.
Mathilde Kschessinska
Mathilda-Marie Feliksovna Kschessinskaya (6 December 1971; also known as Princess Romanovskaya-Krasinskaya after her marriage) was a Russian ballerina from a family of Polish origin.
Her father Feliks Krzesiński and her brother both danced in St. Petersburg.
She was a mistress of the future Tsar Nicholas II of Russia prior to his marriage, and later the wife of his cousin Grand Duke Andrei Vladimirovich of Russia.
She was known in the West as "Mathilde Kschessinska" or "Matilda Kshesinskaya".
Prince Dmitri Alexandrovich of Russia
Prince Dmitri Alexandrovich of Russia( 15 August 1901 – 7 July 1980) was the fourth son and fifth child of Grand Duke Alexander Mikhailovich of Russia and Grand Duchess Xenia Alexandrovna of Russia.
He was a nephew of Tsar Nicholas II of Russia.
Grand Duchess Kira Kirillovna of Russia
Grand Duchess 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.
She married the head of the German Imperial House, Prince Louis Ferdinand of Prussia.
Grand Duke Vladimir Alexandrovich of Russia
Grand Duke Vladimir Alexandrovich of Russia (22 April 1847 – 17 February 1909) was a son of Emperor Alexander II of Russia, a brother of Emperor Alexander III of Russia and the senior Grand Duke of the House of Romanov during the reign of his nephew, Emperor Nicholas II.
Grand Duke Vladimir followed a military career and occupied important military positions during the reigns of the last three Russian Emperors.
Interested in artistic and intellectual pursuits; he was appointed President of the Academy of Fine Arts.
He functioned as a patron of many artists and as a sponsor of the Imperial ballet.
During the reign of his father, Emperor Alexander II, he was made Adjutant-General, senator in 1868 and a member of the Council of State in 1872.
His brother, Alexander III, also promoted his career.
He became a member of the Council of Ministers, Commander of the Imperial Guards Corps and Military Governor of Saint Petersburg.
He tried to exert some influence over his nephew Tsar Nicholas II, but had to content himself with holding a rival court with his wife Grand Duchess Maria Pavlovna at his palace in Saint Petersburg.
The events of Bloody Sunday in 1905, while he was Military Governor of St Petersburg, tarnished his reputation.
During the last years of his life, the rift between his family and that of Nicholas II widened.
He died after a stroke in 1909.
Grand Duke Vyacheslav Konstantinovich of Russia
Grand Duke Vyacheslav Konstantinovich of Russia,( 13 July 1862 – 27 February 1879), was a Romanov grand duke and the youngest son of Grand Duke Konstantin Nikolayevich of Russia and his wife Princess Alexandra of Saxe- Altenburg.
The English form of his first name is Wenceslas.
Grand Duke Alexei Mikhailovich of Russia
Grand Duke Alexei Mikhailovich of Russia( Russian: Алексей Михайлович)( 28 December 1875 – 2 March 1895) was the sixth son and youngest child of Grand Duke Michael Nicolaievich of Russia and a first cousin of Alexander III of Russia.
He was destined to follow a career in the Russian Navy, but he died in his youth of tuberculosis.
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Aleksey Belevsky-Zhukovsky
Count Alexei Alexeevich Belevsky- Zhukovsky( 26 November 1871, Salzburg – c. 1931 Caucasus) was the son of Grand Duke Alexei Alexandrovich of Russia and Alexandra Vasilievna, Baroness Seggiano.
He was also, being the son of Grand Duke Alexei, a grandson of Alexander II of Russia.

Question: Who is Grand Duke Andrei Vladimirovich Of Russia's paternal grandfather?
Answer: Alexander II of Russia