Nicholas Maximilianovitch, 4th Duke of Leuchtenberg

Nicholas Maximilianovitch
Duke of Leuchtenberg Prince Romanovsky
Duke of Leuchtenberg
Reign	1 November 1852 – 6 January 1891
Predecessor	Maximilian de Beauharnais
Successor	Eugen Maximilianovich
Born	4 August 1843 Sergievka, Russian Empire
Died	6 January 1891(1891-01-06) (aged 47) 8th arrondissement of Paris, France
Burial	24 January 1891 Chapel of Resurrection, Coastal Monastery of Saint Sergius
Spouse	Nadezhda Annenkova ​ (m. 1868)​ [a]
Issue	Georgy Nikolayevich Nicolas Nicolayevitch
Names Nicholas Maximilianovich Romanowsky
House	Beauharnais
Father	Maximilian de Beauharnais, 3rd Duke of Leuchtenberg
Mother	Grand Duchess Maria Nikolaevna of Russia
Religion	Russian Orthodoxy

Nicholas Maximilianovitch, 4th Duke of Leuchtenberg (4 August 1843 - 6 January 1891) was a Russian Prince and soldier who was the 4th Duke of Leuchtenberg from 1852 until his death in 1891. Head of the House of Beauharnais, he was a grandson of Nicholas I of Russia and was a candidate for the throne of Greece and of Romania. Like his father, he was also a renowned mineralogist.

Son of Maximilian de Beauharnais, 3rd Duke of Leuchtenberg and of Grand Duchess Maria Nikolaevna of Russia, Nicholas grew up in Russia. He followed a military career but also studied mineralogy, geology and palaeontology. His was a candidate for the throne of Greece in 1862 and for Romania in 1866 but his links with Russia meant he did not accede to either.

Appointed President of the Imperial Society of Mineralogy and Honorary President of the Russian Society of Technology in 1865 by Tsar Alexander II, he carried out several scientific missions in Russia. His relationship with Nadezhda Annenkova led him to flee the country in 1868. Deprived of his fortune and abandoned by his family, he was later partially forgiven by his uncle. He spent the rest of his life in exile and died at the age of 47 of throat cancer.
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