[1] Her father was Marquis of Coislin, Pontchâteau and la Roche-Bernard, governor of the town and fortresses of Brest and lieutenant general of lower Brittany.

Marguerite du Cambout died of apoplexy in Paris on 9 December 1674 at the age of 50.

[5] She was buried in the Eglise des Capucines on the Rue Saint-Honoré, Paris.

[1] Her half length portrait by Balthazar Moncornet (1598-1668), dated 1658, is held by the British Museum.

In an oval border, it shows her upper body in an elaborate dress adorned with pearls and jewels, with a hunting scene in the background.