François de Franquetot de Coigny

François de Franquetot de Coigny (; 16 March 1670 – 18 December 1759) was a Marshal of France, Count, and from 1747, the Duke of Coigny.

Biography He was born in Coigny château near Coutances, Normandy, into an old French noble family as son of Robert-Jean de Coigny, and his wife, Marie-Françoise de Matignon (1648-1719). His maternal uncle was Charles Auguste de Goyon, Count of Gacé (1647-1729), Marshal of France and his cousin Jacques I, Prince of Monaco. Like his father he pursued a military career. He became brigadier in 1702, Maréchal de camp in 1703 and lieutenant general in 1709.

In 1719, during the War of the Quadruple Alliance, he served in the army on the borders with Spain, and contributed in taking Fuenterrabía, San Sebastián, Castellciutat and La Seu d'Urgell. In 1725, he was appointed Governor of the Principality of Sedan.

Family

He married Henriette de Montbourcher du Bordage (1671-1751) on 4 December 1699; they had five children, one son and four daughters:

Marie-Françoise Adélaïde (b. 1700) Jean Antoine François, Marquis de Coigny (1702–1748), killed in a duel against Louis Auguste de Bourbon, Prince of Dombes, married Marie Thérèse Josèphe Corentine de Névet (1717-1778), lady in waiting to Henriette of France and had issue Charlotte-Bibiane (1703–1772), married Jean Baptiste Joachim Colbert, Marquis de Croissy (1703-1777) and had issue Henriette (1703-1772), married Jean-Baptiste Colbert de Torcy, Marquis de Croissy-en-Brie (1703-1777) and had issue Élisabeth Marie (b. 1705)

His grandson was François-Henri de Franquetot de Coigny, also a Marshal of France.

Death François de Franquetot, Duke de Coigny died on 18 December 1759, at the age of 89, having outlived his son, and his wife Henriette by 8 years.