Grand Duke Nikolai Nikolaevich of Russia (1856–1929)

Grand Duke Nicholas Nikolaevich
Commander in Chief of the Russian Armies
Grand Duke Nicholas in 1914
Born	(1856-11-06)6 November 1856 St. Petersburg, Russian Empire
Died	5 January 1929(1929-01-05) (aged 72) Antibes, France
Burial	St. Michael the Archangel Church, Cannes, France (1929–2015) Chapel of the Transfiguration of Our Lord, Bratsky military cemetery, Moscow (since 2015)
Spouse	Princess Anastasia of Montenegro (m. 1907)
Full name Nicholas Nikolaevich Romanov
House	Holstein-Gottorp-Romanov
Father	Grand Duke Nicholas Nicolaievich
Mother	Alexandra Petrovna (Alexandra of Oldenburg)

Grand Duke Nikolay Nikolayevich Romanov of Russia (Russian: Николай Николаевич Романов (младший – the younger); 18 November 1856 – 5 January 1929) was a Russian general in World War I. A grandson of Nicholas I of Russia, he was commander in chief of the Russian armies on the main front in the first year of the war, and was later a successful commander-in-chief in the Caucasus. He was briefly reigning Emperor of Russia in 1922, but his reign was nominal and only in areas controlled by the White Movement in the Russian Far East.

A very tall man (1.98m / 6' 6"), Nicholas, named after his paternal grandfather the emperor, was born as the eldest son to Grand Duke Nicholas Nicolaevich of Russia (1831–1891) and Alexandra Petrovna of Oldenburg (1838–1900) on 18 November 1856. His father was the sixth child and third son born to Nicholas I of Russia and his Empress consort Alexandra Fedorovna of Prussia (1798–1860). Alexandra Fedorovna was a daughter of Frederick William III of Prussia and Louise of Mecklenburg-Strelitz.

Nicholas' mother, his father's first cousin's daughter, was a daughter of Duke Konstantin Peter of Oldenburg (1812–1881) and Princess Therese of Nassau (1815–1871). His maternal grandfather was a son of Duke George of Oldenburg and Grand Duchess Catherine Pavlovna of Russia, daughter of Paul I of Russia and Maria Fedorovna of Württemberg. (Catherine was later remarried to William I of Württemberg.) His maternal grandmother was a daughter of Wilhelm, Duke of Nassau (1792–1839) and Princess Luise of Saxe-Hildburghausen. The Duke of Nassau was a son of Friedrich Wilhelm, Duke of Nassau (1768–1816) and Burgravine Louise Isabelle of Kirchberg. His paternal grandparents were Duke Karl Christian of Nassau-Weilburg (1735–1788) and Carolina of Orange-Nassau. Carolina was a daughter of William IV of Orange and Anne, Princess Royal and Princess of Orange. Anne was the eldest daughter of George II of Great Britain and Caroline of Ansbach.