Charles-Maurice of Monaco (Monégasque: Carlu-Mauriçi de Mu̍negu; 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.
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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.
Marriage
On December 10, 1749, in the chapel of the Hôtel Saint-Simon in Paris (with the approval of King Louis XV dated November 1, 1749), he married Marie-Christine de Rouvroy de Saint-Simon (1728–1774), daughter of Jacques-Louis de Rouvroy (1698–1746), Duke of Saint-Simon by gift inter vivos, known as the "Duke of Ruffec," and his wife Catherine-Charlotte-Thérèse de Gramont (1707–1755). Marie-Christine was the granddaughter of the renowned memoirist Louis de Rouvroy de Saint-Simon (1675–1755), Duke of Saint-Simon. As his wife was a Grandee of Spain of the first class, Charles-Maurice became a Grandee of Spain of the first class jure uxoris.
No children were born from this marriage, which ended in separation in 1766.



