About Louis Bonaparte
Louis Bonaparte (born Luigi Buonaparte; 2 September 1778 – 25 July 1846) was a younger brother of Napoleon I, Emperor of the French. He was a monarch in his own right from 1806 to 1810, ruling over the Kingdom of Holland (a French client state roughly corresponding to the modern-day Netherlands). In that capacity, he was known as Louis I (Dutch: Lodewijk I [ˈloːdəʋɛik]). Louis was the fifth surviving child and fourth surviving son of Carlo Buonaparte and Letizia Ramolino, out of eight children who lived past infancy. He and his siblings were all born in Corsica, which had been conquered by France less than a decade before his birth. Louis followed his older brothers into the French Army, where he benefited from Napoleon's patronage. In 1802, he married his step-niece Hortense de Beauharnais, the daughter of Empress Joséphine (Napoleon's wife). In 1806, Napoleon I established the Kingdom of Holland in place of the Batavian Commonwealth, appointing Louis as the new king. Napoleon had intended for Holland to be little more than a puppet state, but Louis was determined to be as independent as possible and became quite popular amongst his new people. Growing tired of his brother's wilfulness, Napoleon annexed Holland into the French Empire in 1810, and Louis went into exile. His youngest son, Louis-Napoléon, established the Second French Empire in 1852, proclaiming himself Napoleon III.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.