Bon - Adrien Jeannot de Moncey Bon - Adrien Jeannot de Moncey ( or Jannot de Moncey ) , 1st Duke of Conegliano , 1st Baron of Conegliano , Peer of France ( 31 July 1754 – 20 April 1842 ) , Marshal of France , was a prominent soldier in the Revolutionary and Napoleonic Wars . Biography . He was born on 31 July 1754 either in Palise or Moncey , Doubs . His father was a lawyer from Besançon . In his boyhood he twice enlisted in the French army , but his father procured his discharge on both occasions . His desire was at last gratified in 1778 , when he received a commission . He was a captain when , in 1791 , he embraced the principles of the French Revolution . Moncey won great distinction in the campaigns of 1793 and 1794 on the Spanish frontier , rising from the commander of a battalion to the commander - in - chief of the Army of the Western Pyrenees in a few months , and his successful operations were largely instrumental in compelling the Spanish government to make peace . After this he was employed in the highest commands until 1799 , when the government , suspecting him of Royalist views , dismissed him . From 1801 – 1815 he was inspector general of the police . But the " coup d ' état " of 18 Brumaire in 1799 brought him back to the active list , and in Napoleon ' s Italian campaign of 1800 he led a corps from Switzerland into Italy , surmounting all the difficulties of bringing horses and guns over the then formidable pass of St Gothard . In 1801 Napoleon made him inspector - general of the French Gendarmerie , and on the assumption of the imperial title created him a Marshal of France . In 1805 Moncey received the grand cordon of the legion of honor . In July 1808 he was made duke of Conegliano ; it was a " duché grand - fief " , a rare hereditary honor . The title was later confirmed under the Restauration , and , since he had no son , the Marshall was granted permission to pass it to his son - in - law ( with his newly granted title of Baron of Conegliano and Peer of France ) . The same year , the first of the Peninsular War , Moncey was sent to Spain in command of an army corps . He distinguished himself by his victorious advance on Valencia , but the effect of that was destroyed by Dupont ' s defeat at the Battle of Bailén . Moncey then took a leading part in the emperor ' s campaign on the Ebro and in the Second Siege of Saragossa in 1809 . He refused to serve in the invasion of Russia , and therefore had no share in the campaign of the " Grande Armée " in 1812 and 1813 . However , when France was invaded in 1814 , Marshal Moncey reappeared in the field and fought the last battle for Paris on the heights of Montmartre and at the barrier of Clichy . In 1814 he supported Louis XVIII and was created a Peer of France as Baron of Conegliano ( June 1814 , confirmed in 1825 ) . He remained neutral during Napoleon ' s return , the ' Hundred Days ' , feeling himself bound to Louis XVIII by his engagements as a Peer of France , but after Waterloo he was punished for refusing to take part in the court martial of Marshal Ney by imprisonment and the loss of his marshalate and peerage . The King returned his title of Marshal in 1816 , and he re - entered the chamber of peers three years later . He continued his military career : his last active service was as commander of an army corps in the short war with Spain in 1823 . In 1833 he became governor of the prestigious Hôtel des Invalides ( a home for veterans in Paris ) . Present at the return of Napoleon ' s ashes in December 1840 , he said after the ceremony , " Now , let ' s go home to die " . He married Charlotte Prospère Remillet ( 1761 – 1842 ) , by whom he had 3 children :