Prince Charles Maurice, Count of Valentinois

Charles-Maurice of Monaco (; 14 May 1727 – 18 January 1798), sometimes referred to as Charles-Maurice Goyon de Matignon or Charles-Maurice Grimaldi, was a Monégasque prince, he was the third surviving child and youngest son of Prince Jacques I and Princess Louise Hippolyte.

Early life and marriage Charles-Maurice was born on May 14, 1727, to Jacques I and Louise Hippolyte of Monaco, his mother was the second female sovereign of Monaco. in which he evokes the wounding of the Count of Valentinois in these terms: "Monaco loses its blood, and love sighs for it." Promoted to ensign in the gendarmerie of Brittany on March 8, 1746, he became a sub-lieutenant in the same company in March 1747. On February 10, 1759, he was promoted to brigadier of cavalry, Lieutenant-General in the government of Normandy, and governor of Granville, Saint-Lô, Cherbourg, and the Chausey Islands.

Although he is presented in a 1777 work as a Knight of the Golden Fleece, Charles-Maurice de Monaco is not found in the available lists. Confusion with his status as a Grandee of Spain by right of marriage is possible.