Eugen Maximilianovich, Duke of Leuchtenberg

Eugen Maximilianovich Romanowsky, Duke of Leuchtenberg (8 February 1847 - 31 August 1901) was the 5th Duke of Leuchtenberg.

Eugen Maximilianovich was born in Saint Petersburg in 1847, as the second son and fifth child of Maximilian de Beauharnais, 3rd Duke of Leuchtenberg and Grand Duchess Maria Nikolaevna of Russia. After the death of his father in 1852, Eugen's older brother Nicolas became the fourth Duke of Leuchtenberg. When he died without an heir in 1891, Eugen became the fifth Duke, until his death in 1901. He was then succeeded by his younger brother George.

On 18 December 1852, after the death of their father, all the children of Duke Maximilian were allowed to wear the princely name and title of Romanowsky (or Romanowska for the female descendants), and were style "Imperial Highness".

In 1869, he married Daria Konstantinowa Opotschinina, the granddaughter of Mikhail Kutuzov: she was made countess of Beauharnais (died 1870 in childbirth); and in 1878 to Zeneïde Dmitrijewna Skobelew (also known as Zina) (died 1899), sister to the Russian general Mikhail Skobelev. He had one child, Daria (1870-1937), duchess of Beauharnais.

Eugen was a Division General in the Imperial Russian Army. In 1872-1873, he participated in the attack on Khiva and was awarded the Order of St. George, fourth degree. Between 1874 and 1877 he was commander of the Alexandria 5th Hussars. For his work in the Russo-Turkish War in 1877, he received the Order of St. Vladimir third class. He became a Lieutenant general in 1886, and was commander of the 37th Infantry Division from 1888 until 1893.

He died in 1901 in St. Petersburg, and is buried in the Alexander Nevsky Lavra.