Prince's Palace of Monaco Maria Caroline Gibert de Lametz. Despite her attempts to rule, her husband's people were once again in revolt. In an attempt to ease the volatile situation Florestan ceded power to his son Charles, but this came too late to appease the Monégasques. Menton and Roquebrune broke away from Monaco, leaving the Grimaldi's already small country hugely diminished—little more than Monte Carlo. Florestan died in 1856 and his son, Charles, who had already been ruling what remained of Monaco, succeeded him as Charles III ("Illustration 15"). Menton and Roquebrune officially became part of France in 1861, reducing Monaco's size at a
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