Louis XVIII., brother of Louis XVI., and called Monsieur during his brother's reign, flew from Paris and joined the Emigrants along with his brother, Count d'Artois, and took up arms, which he was compelled to forego, to wander from one foreign Court to another and find refuge at last in England; on Napoleon's departure for Elba he returned to France and was installed on the throne as Louis le Desiré, but by the reappearance of the former on the scene he was obliged to seek refuge in Belgium, to return for good after the battle of Waterloo, July 9, 1815, with Talleyrand for minister and Fouché as minister of police; he reigned but a few years, his constitution being much enfeebled by a disease (1755‒1824).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Louis XVII. * Louis Napoleon