Louis Napoléon Bonaparte (born Luigi Buonaparte; 2 September 1778 – 25 July 1846), known as Lodewijk Napoleon (pronounced [ˈloːdəʋɛik nɑˈpoːleːjɔn]) in Dutch, was a French nobleman who was King of Holland in 1806-1810. He was the fifth surviving child and the fourth surviving son of Carlo Buonaparte and Letizia Ramolino. His brother was the first Emperor of the French, Napoleon I, and his son was the last French Emperor, Napoleon III.

Louis was born in Ajaccio, Corsica. He was a younger brother of Joseph, Napoleon, Lucien, and Elisa Bonaparte, and the older brother of Pauline, Caroline, and Jérôme Bonaparte. Louis' godparents were the island's governor, Mr de Marbeuf and the wife of the intendant, Bertrand de Boucheporn, whom Letizia and her husband, Carlo, had befriended.

Louis Bonaparte's early career was spent in the Army, and he served with Napoleon in Egypt. Thanks to his older brother, Napoleon, Louis was given a commission in the French Military, and was promoted to Lieutenant in the 4th Artillery Regiment, and from there he was made Aide de Camp on Napoleon's staff. Napoleon, during his Italian Campaign, recommended Louis to Carnot, and Louis was consequently made a Captain. He later became a General by the age of 25, although he himself felt that he had risen too high in too short a time.

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