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
Land reclamation in Monaco Monaco. Land has also been added to areas of La Condamine and Larvotto/Bas Moulins. Prince Albert's father, Rainier III, was known as the "Builder Prince". In an attempt to further develop the economy of Monaco, he first supported the idea of land reclamation. Since it was impossible to extend into France, the only solution was to reclaim land from the sea. First, the Larvotto beach district was created in the early 1960s, then the Fontvieille industrial area, increasing the principality's surface area by approximately 20 percent. More recently, Port Hercules has been extended to welcome larger cruise ships on one