Line of succession to the French throne (Bonapartist) sons, and it seemed unlikely that he would have any due to the age of his wife, Joséphine de Beauharnais. His eventual response was to have his marriage to Josephine annulled and to undertake a second marriage with Roman Catholic rites to Archduchess Marie Louise, daughter of Emperor Francis I of Austria. Their only child was Napoleon, King of Rome, known in exile as "Napoleon II" and as the Duke of Reichstadt. He died unmarried, thereby extinguishing the legitimate descent of Napoleon I. Meanwhile, Napoleon I's older brother, Joseph Bonaparte, recognized upon establishment of the First Empire as first in
Line of succession to the French throne (Bonapartist) Restoration, and was briefly restored during the Hundred Days in 1815. The Second French Empire was the regime established in France by Napoleon III from 1852 to 1870, between the Second French Republic and the Third French Republic. Napoleon III was the third son of Louis Bonaparte, a younger brother of Napoleon I, and Hortense de Beauharnais, the daughter of Napoleon I's wife, Josephine de Beauharnais, by her first marriage. Bonapartism had its followers from 1815 onward among those who never accepted the defeat at Waterloo or the Congress of Vienna. Napoleon I's death in exile on Saint Helena in