Armand-Nompar de Caumont, duc de la Force

Armand-Nompar de Caumont, duc de la Force (30 October 1580 – 16 December 1675) was a Marshal of France and peer of France.

He was the son of another Marshal of France, Jacques-Nompar de Caumont, duc de la Force and Charlotte de Gontaut, daughter of Marshal Armand de Gontaut, baron de Biron. Like his father, Armand-Nompar was a Protestant.

First Marquis de La Force, later Duc de la Force after the death of his father, he was made Grand Master of the Kings' garde-robe in 1637. He fought in the wars of Louis XIII and Louis XIV in Italy and Germany, and became a Marshal in 1652.

He married Jeanne de Rochefaton, dame de Saveilles and had two children
 * Charlotte de Caumont (1623–1666), married in 1651 Marshal Turenne, but died without children.
 * Jacques de Caumont (1633–1661), without issue

Jeanne de Rochefaton died in 1667.

On 12 December of the same year, Armand Nompar remarried with the 17-year old Louise de Belsunce who died from smallpox and without children on 7 December 1680.

Armand Nompar died in the castle de La Force in the Dordogne on 16 December 1675, without heir. The title of Duke de la Force went to his younger brother Henri-Nompar.