The Battle of La Marfée took place during Thirty Years' War near Sedan, France, on 6 July 1641, between a Royal army of Louis XIII under Marshall Gaspard III de Coligny, and French malcontents led by Prince Louis de Bourbon, Count of Soissons, and Duke Frédéric Maurice de La Tour d'Auvergne, duc de Bouillon, who were supported by an Imperial-Spanish army under general Guillaume de Lamboy sent from the Spanish Netherlands by the Cardinal-Infante Ferdinand of Austria. The French malcontents and the Habsburg forces dealt a serious defeat to the French Royal Army, and for a moment, Cardinal Richelieu feared that the rebels, supported by the Spanish forces, would advance on Paris. Shortly after, however, Soissons fell dead, either murdered by an assassin or killed by himself accidentally, and t