Until 1651, the Principality of Sedan belonged to the La Tour d'Auvergne family. It was at that time a sovereign principality. Their representative, Marshal Turenne, was born at Sedan on 11 September 1611. With help from the Holy Roman Empire, it defeated France at the Battle of La Marfée. Immediately after its victory, Sedan was besieged and its prince, Frédéric Maurice de La Tour d'Auvergne, duc de Bouillon, submitted to France. It was annexed to France in return for sparing the prince's life after he became involved in a conspiracy against France.