Eugène_de_Beauharnais--Oscar_II_of_Sweden

Eugène Rose de Beauharnais ([øʒɛn də boaʁnɛ]; 3 September 1781 – 21 February 1824) was a French nobleman, statesman, and military commander who served during the French Revolutionary Wars and the Napoleonic Wars. Through the second marriage of his mother, Joséphine de Beauharnais, he was the stepson of Napoleon Bonaparte. Under the French Empire he also became Napoleon's adopted son (but not the heir to the imperial throne). He was Viceroy of the Kingdom of Italy under his stepfather, from 1805 to 1814, and commanded the Army of Italy during the Napoleonic Wars. Historians consider him one of Napoleon's most able relatives.