Armand Emmanuel de Vignerot du Plessis, 5th Duke of Richelieu

The Most High and Most Potent Lord The Duke of Richelieu KOHS, KOSG
Portrait of the Duke of Richelieu by Thomas Lawrence, 1818
Prime Minister of France
In office 20 February 1820 – 14 December 1821
Monarch	Louis XVIII
Preceded by	Comte Decazes
Succeeded by	Comte de Villèle
In office 26 September 1815 – 29 December 1818
Monarch	Louis XVIII
Preceded by	Charles Maurice de Talleyrand
Succeeded by	Marquis Dessolles
Member of the Académie française
In office 23 March 1816 – 17 May 1822
Preceded by	Antoine-Vincent Arnault
Succeeded by	Bon-Joseph Dacier
Governor of Odesa
In office 8 October 1803 – 27 August 1814
Monarch	Alexander I
Preceded by	Paul Pustoshkin
Succeeded by	Thomas A. Cobley
Personal details
Born	Armand Emmanuel Sophie Septimanie Vignerot du Plessis (1766-09-25)25 September 1766 Paris, France
Died	17 May 1822(1822-05-17) (aged 55) Paris, France
Political party	Doctrinaires
Spouse	Rosalie de Rochechouart ​ ​ (m. 1781)​
Profession	Diplomat, military officer
Signature
Military service
Allegiance	Kingdom of France Russian Empire
Branch/service	French Royal Army Army of Condé Imperial Russian Army
Years of service	1785–1814
Rank	Captain Major general
Unit	Dragoon 3rd Hussar Regiment
Battles/wars	French Revolutionary Wars Russo-Turkish War Coalition Wars

Armand Emmanuel Sophie Septimanie de Vignerot du Plessis, 5th Duke of Richelieu and Fronsac (25 September 1766 – 17 May 1822), was a French statesman during the Bourbon Restoration. He was known by the courtesy title of Count of Chinon until 1788, then Duke of Fronsac until 1791, when he succeeded his father as Duke of Richelieu.

As a royalist, during the French Revolutionary Wars and Napoleonic Wars, he served as a senior officer in the Imperial Russian Army, achieving the grade of major general. Following the Bourbon Restoration, he returned to his homeland and was twice Prime Minister of France.