Prince's Palace of Monaco from Normandy. Louise-Hippolyte succeeded her father as sovereign of Monaco in 1731 but died just months later. The King of France, confirming Monaco's subservient state to France, ignored the protests of other branches of the Grimaldi family, overthrew the Monégasque constitution, and approved the succession of Jacques de Goyon Matignon as Prince Jacques I. Jacques I assumed the name and arms of the Grimaldi, but the French aristocracy showed scant respect towards the new prince who had risen from their ranks and chose to spend his time absent from Monaco. He died in 1751 and was succeeded by his and
Jacques I, Prince of Monaco Jacques I, Prince of Monaco Jacques Goÿon de Matignon (Jacques François Léonor; 21 November 1689 – 23 April 1751) was Count of Thorigny, Prince of Monaco as Jacques I, and the fourth Duke of Valentinois from 1731 until 1733. Jacques came from an ancient Norman family. "Thorigny" is now called Torigni-sur-Vire, where the "Mairie" is the former family chateau. His uncle was Marshal Charles Auguste de Goÿon de Matignon. He was a son of Jacques Goÿon de Matignon, "jure uxoris" Comte de Thorigny, and Charlotte Goyon de Matignon, Comtesse de Thorigny "suo jure". When Antonio I of Monaco and his