Bonaparte, Lucien

(born May 21, 1775, Ajaccio, Corsica—died June 29, 1840, Viterbo, Italy) French nobleman and politician. A brother of Napoleon, he became president of the Council of Five Hundred, and he helped Napoleon seize power in the Coup of 18–19 Brumaire. Lucien's belief that Napoleon's ambition jeopardized the cause of democracy led to strained relations between the brothers. However, he offered Napoleon help during the Hundred Days and was the last to defend Napoleon's prerogatives at the time of his second abdication, after which he lived in Italy.

Source: Encyclopedia Britannica