Marshal of France. Louis François Armand de Vignerot Of Plessis, duke of Fronsac, then duke of Richelieu Great-grand-nephew of the cardinal of Richelieu, he was the godson of Louis XIV and the duchess of Burgundy. He made himself famous for his affairs and his vices: imprisoned for the first time to the Bastille for its misdemeanors, it left there at the end of fourteen months only thanks to protection Mrs. de Maintenon; embastillé one second time in 1716, it was this time at Miss de Valois who it had to be released; three years afterwards, it still spent several months to the Bastille after being compromised in the conspiracy of Cellamare.  

Hardly knowing the orthography, it was however accepted with the French Academy in 1720, but it had to ask Fontenelle to write his speech of reception to him. Although its manners had rather brought it closer to Casanova and its religious ideas of Voltaire - of which he was the friend, and for which he obtained the protection of the duchess of Chateauroux -, he was with the Academy the adversary of the philosophers and the chief of the religious party, affirming that the religion was useful for the police force of the State.

Its military exploits were however not negligible: man of valorous war, it made his first weapons under the command of the marshal of Villars (1712), then was distinguished in particular with the seat from Kehl during the war of succession from Poland (1733), and, in the war of succession of Austria, in Dettingen (1743) and Fontenoy (1745), before delivering Genoa, that the Austrians besieged (1748).

Fact Marshal of France, duke and par in 1748, it was named general governor of Guyenne in 1755. During the Seven Year old war, it seized Minorque (1756) and, the following year, victorious of the English army of the duke of Cumberland, it conquered Brunswick and Hanover; but it was devoted to it to such plunderings and exactions that it was recalled in France.