Charles' first act as King of France was to grant the style of Royal Highness to his cousins of the cadet branch of the House of Bourbon, the Orléans. Because the Duke of Orleans had voted the death of his brother Louis XVI, Louis XVIII had greatly disliked the Orléans family. However, Charles intended it to create a unified House of Bourbon.His favoritism during his reign toward the Roman Catholic Church and the aristocracy aroused great opposition, leading to the July Revolution of 1830.