Amélie of LeuchtenbergJosephine of LeuchtenbergEugénie de BeauharnaisThéodolinde de Beauharnais
Eugène de Beauharnais
Grand Duchess Maria Nikolaevna of Russia
Princess Maria Maximilianovna of LeuchtenbergPrincess Eugenia Maximilianovna of LeuchtenbergGeorge Maximilianovich6th Duke of LeuchtenbergNikolaus de BeauharnaisEugen MaximilianovichDuke of Leuchtenbergfranzingxxx klindix
Maximilian Joseph Eugene Auguste Napoleon de Beauharnais, 3rd Duke of Leuchtenberg (2 October 1817 Munich – 1 November 1852 St.Petersburg), was the husband of Grand Duchess Maria Nikolayevna of Russia and first cousin of Emperors Napoleon III of the French and Francis Joseph I of Austria. He was a grandson of Napoleon I's first wife, the Empress Josephine, by her prior marriage to Alexandre de Beauharnais.
He was born as the second son of Eugène de Beauharnais and Princess Augusta Amalia Ludovika Georgia of Bavaria. His maternal grandparents were Maximilian I, King of Bavaria and his first wife Marie Wilhelmine Auguste, Landgravine of Hesse-Darmstadt.
His maternal grandmother Marie Wilhelmine Auguste was a daughter of Georg Wilhelm of Hesse-Darmstadt, younger son of Louis VIII, Landgrave of Hesse-Darmstadt.
He was a brother of:
Auguste de Beauharnais, Duke of Santa Cruz, Consort prince of Queen Maria II of Portugal;
Amélie de Beauharnais, Empress consort of Pedro I of Brazil;
Josephine of Leuchtenberg, queen consort of Oscar I of Sweden.
Duke of Leuchtenberg
His maternal grandfather Maximilian of Bavaria appointed Eugène de Beauharnais, 1st Duke of Leuchtenberg on 14 November 1817. The title came with the effective administration of the Principality of Eichstätt. Maximilian was named "Prince of Leuchtenburg" and became the second-in-line heir to the Duchy.
On 21 February 1824, his father died and his older brother became Auguste de Beauharnais, Duke of Leuchtenberg. His brother was yet childless and Maximilian became his Heir Presumptive.
Auguste eventually married Queen Maria II of Portugal but died childless on 28 March 1835. Maximilian became the 3rd Duke of Leuchtenberg at this point.
He married Grand Duchess Maria Nikolayevna of Russia on July 2, 1839 in the chapel of the Winter Palace. She was the eldest daughter of Nicholas I of Russia and Charlotte of Prussia.
His father-in-law Nicholas I granted to him on 14 July 1839 the Russian and Finnish style Imperial Highness, a rank he was entitled to as a descendant of the extended dynasty of Napoleon I of France. His father was an adoptive son of Napoleon.
Princess Alexandra Maximilianovna (1840–1843) died in childhood
Princess Maria Maximilianovna (1841–1914) m. Prince Wilhelm of Baden (1829–1897), younger son of Leopold, Grand Duke of Baden
Nicholas Maximilianovich, Duke of Leuchtenberg (1843–1891) m. Nadezhda Annenkova (1840-1891)
Princess Eugenia Maximilianovna (1845–1925) m. Duke Alexander Petrovich of Oldenburg (1844–1932)
Eugen Maximilianovich, Duke of Leuchtenberg (1847–1901) m. Daria Opotchinina (1845–1870) m. Zinaida Skobeleva (1856–1899)
Prince Sergei Maximilianovich (1849–1877) Killed in the Russo-Turkish war
Georgi Maximilianovich, Duke of Leuchtenberg (1852–1912) m.(1) Duchess Therese Petrovna of Oldenburg (1852–1883) m.(2) Anastasia of Montenegro (1868–1935)
Through his oldest surviving daughter Princess Maria Maximilianovna of Leuchtenberg (1841–1914), he is the grandfather of Prince Maximilian of Baden (1867–1929), Chancellor of Germany during World War I.
His youngest daughter Princess Eugenia Maximilianovna of Leuchtenberg (1845–1925) married Duke Alexander Petrovich of Oldenburg (1844–1932), the grandson of Grand Duchess Catherine Pavlovna of Russia, and became the mother of Duke Peter Alexandrovich of Oldenburg (1868–1924), the divorced husband of Grand Duchess Olga Alexandrovna of Russia (1882–1960), the youngest sister of Nicholas II of Russia.
Ancestors of Maximilian de Beauharnais, 3rd Duke of Leuchtenberg
16. Claude de Beauharnais, comte des Roches-Baritaud
8. François de Beauharnais, marquis de la Ferté-Beauharnais
17. Renée Hardouineau de Laudanière
4. Alexandre, vicomte de Beauharnais
18. François-Louis de Pyvart de Chastullé
9. Marie Anne Henriette Françoise de Pyvart de Chastullé
19. Jeanne Hardouineau de Laudanière
2. Eugène de Beauharnais, 1st Duke of Leuchtenberg
20. Gaspard Joseph Tascher de la Pagerie
10. Joseph-Gaspard Tascher de la Pagerie
21. Françoise Bourreau de la Chevalerie
5. Joséphine Tascher de La Pagerie
22. Joseph François des Vergers de Sannois
11. Rose-Claire des Vergers de Sannois
23. Catherine Marie Brown
1. Maximilian de Beauharnais
24. Christian III, Count Palatine of Zweibrücken
12. Frederick Michael, Count Palatine of Zweibrücken
25. Countess Caroline of Nassau-Saarbrücken
6. King Maximilian I of Bavaria
26. Joseph Charles, Count Palatine of Sulzbach
13. Countess Palatine Maria Franziska of Sulzbach
27. Countess Palatine Elizabeth Augusta Sophie of Neuburg
3. Princess Amalia Augusta of Bavaria
28. Louis VIII, Landgrave of Hesse-Darmstadt
14. Landgrave George William of Hesse-Darmstadt
29. Countess Charlotte Christine Magdalene Johanna of Hanau
7. Princess Augusta Wilhelmine of Hesse-Darmstadt
30. Christian Karl Reinhard, Count of Leiningen-Dagsburg-Falkenburg
15. Countess Marie Luise of Leiningen-Dagsburg-Heidesheim
31. Countess Katharina Polyxena of Solms-Rödelheim