The Duke of Orleans is a title in the French nobility, historically associated with the House of Orleans, a branch of the royal family. The title has been held by various individuals, most notably Louis-Philippe, who became King of the French in 1830. The Duke of Orleans often played significant roles in French politics and society, especially during the 18th and 19th centuries. The title has also been linked to various historical events, including the French Revolution and the subsequent rise of the July Monarchy. Today, the title is still used by descendants of the House of Orleans, who are considered pretenders to the French throne.