July Revolution

The French Revolution of 1830, also known as the July Revolution, saw the overthrow of King Charles X, the French Bourbon monarch, and the ascension of his cousin Louis-Philippe, the duc d'Orléans, who himself, after eighteen precarious years on the throne, would in turn be overthrown. It marked the shift from one constitutional monarchy, the Bourbon Restoration, to another, the July Monarchy, and the transition of power from the House of Bourbon to its cadet branch, the House of Orléans, and the substitution of the principle of popular sovereignty for hereditary right. Supporters of the Bourbon would be called Legitimist, and supporters of Louis-Philippe Orleanist. On September 16, 1824, Charles X ascended to the throne of France. He was the younger brother of Louis XVIII, who, upon the defeat of Napoléon Bonaparte, and by agreement of the Allied powers, had been installed as King of France. The fact that both Louis and Charles ruled by hereditary right rather than popular consent... full article at wikipedia