Louis Antoine of France, Duke of Angoulême was the elder son of Charles X and the last Dauphin of France from 1824 to 1830. He is identified by the Guinness World Records as the shortest-reigning monarch, reigning for less than 20 minutes during the July Revolution, but this is not backed up by historical evidence. He never reigned over the country, but after his father's death in 1836, he was the legitimist pretender as Louis XIX.

Charles X was King of France from 16 September 1824 until 2 August 1830. An uncle of the uncrowned Louis XVII and younger brother of reigning kings Louis XVI and Louis XVIII, he supported the latter in exile. After the Bourbon Restoration in 1814, Charles became the leader of the ultra-royalists, a radical monarchist faction within the French court that affirmed absolute monarchy by divine right and opposed the constitutional monarchy concessions towards liberals and the guarantees of civil liberties granted by the Charter of 1814. Charles gained influence within the French court after the assassination of his son Charles Ferdinand, Duke of Berry, in 1820 and succeeded his brother Louis XVIII in 1824.