Rainier III, Prince of Monaco Rainier III, Prince of Monaco Rainier III (Rainier Louis Henri Maxence Bertrand Grimaldi; 31 May 1923 – 6 April 2005) ruled the Principality of Monaco for almost 56 years, making him one of the longest ruling monarchs in European history. Though internationally known for his marriage to American actress Grace Kelly, he was also responsible for reforms to Monaco's constitution and for expanding the principality's economy beyond its traditional casino gambling base. Gambling accounts for only approximately three percent of the nation's annual revenue today; when Rainier ascended the throne in 1949, it accounted for more than 95 percent. Rainier
Municipality of Monaco single municipality with a law of 1917, operational from the following year. Since then the Monegasque territory is administratively undivided, and the city districts have only statistical purposes. Today, the city hall of Monaco is based in place de la Mairie. Municipality of Monaco The Municipality of Monaco (fr: "Commune de Monaco") is the only administrative division of the Principality of Monaco, and is coterminous with the state as a whole. The municipal system is determined by the IX part of the Constitution of Monaco. The Municipality of Monaco has as its organ the city council made up of 15