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
Monarchy of Monaco remain remotely in the line of succession for the French dukedom of Polignac). The current Prince's complete titles and styles are, in precedent order of rank: "Prince(ss) of Monaco" is a title also given to legitimate members of the princely family of Monaco. It is distinct from the ruling Prince's title "Sovereign Prince of Monaco", currently Albert II, or with the title of the heir apparent or presumptive to the throne, currently Hereditary Prince Jacques. Charlene, Gabriella, Caroline, and Stephanie, are given Princess titles, as the wife and daughters of a sovereign prince. Monarchy of Monaco The Sovereign Prince ()