Charles Juste de Beauvau , Prince of Craon Charles Juste de Beauvau , Prince of Craon ( 10 September 1720 – 21 May 1793 ) , 2nd Prince of Craon ( 1754 ) , Marshal of France ( 1783 ) was a French scholar , nobleman and general . The son of Marc de Beauvau , he was also brother of the fam ous Madame de Boufflers and through her uncle to the poet Stanislas de Boufflers . Personal and public life . Charles Juste was born at the Hôtel de Craon , Lunéville in the capital of the Duchy of Lorraine . His family were the most powerful in Lorraine after the ruling Duke of Lorraine . His mother , Anne Marguerite de Ligneville , was the mistress of Leopold , Duke of Lorraine , husband of Élisabeth Charlotte d ' Orléans ( niece of Louis XIV ) . He was the thirteenth of twenty children . He married twice ; firstly on 3 April 1745 to Marie Charlotte de La Tour d ' Auvergne ( 20 December 1729 – 6 September 1763 ) , daughter of Emmanuel Théodose de La Tour d ' Auvergne and his last wife Louise Henriette Françoise de Lorraine . The couple had one child who married into the Noailles family . His first wife Marie Charlotte died of Smallpox aged 33 . Marie Charlotte died in 1763 . The next year , on 14 March , he married again ; this time to Marie Charlotte Sylvie de Rohan - Chabot , a cousin of Charles , Prince of Soubise . The couple had no children Marie Charlotte Sylvie outliving her husband till 1807 . He entered military service for France and was made a lieutenant of the Calvary on 10 December 1738 ; colonel of the guard ( Lorraine ) on 1 May 1740 and distinguished himself under the leadership of the Duke of Belle - Isle at the Siege of Prague in 1742 . Created a Brigadier on 16 May 1746 he was later created a Field marshal on 10 May 1748 . He was later elevated to Lieutenant General on 28 December 1758 . He gained further distinction in 1762 while serving in Spain . He was named the Governor of Languedoc on 12 June 1747 , he was later created the governor of Provence . A Grandee of Spain , first class from 11 May 1754 , he became a Knight of the Order of the Holy Spirit , the highest decoration in Ancien régime France ( 1 January 1757 ) . He had dealings with the Académie française . He kept a fashionable salon , keeping company with the likes of Jean Devaines , the philosopher Jean - François Marmontel , the poet Jean François de Saint - Lambert as well as his nephew Stanislas de Boufflers . He was created a Marshal of France in 1783 . In 1789 , he served in the Secretary of State for War for six months . A supporter of reforms , he was untroubled by the French Revolution and died in his bed at the height of the Reign of Terror . The maréchal de Beauvau , died at the " hôtel de Beauvau " , his Parisian residence on the Place Beauvau , named after him . The hôtel was built by the architect Nicolas Le Camus de Mézières around 1770 for Charles Juste . The hôtel de Beauvau has housed the Ministry of the Interior since 1861 . He owned the Château du Val at Saint - Germain - en - Laye , a property later acquired by Benjamin Franklin . His nephew Marc Étienne Gabriel de Beauvau ( 1773 – 1849 ) became the next Prince of Beauvau . The present Noailles " duc de Mouchy " is a direct descendant of Charles Juste . Issue . Anne Louise Marie de Beauvau , Mademoiselle de Beauvau ( 1 April 1750 – 20 November 1834 ) married Philippe Louis de Noailles and had issue .