Rainier III, Prince of Monaco Our Lady Immaculate, the resting place of previous sovereign princes of Monaco and several of their wives, and the place where Prince Rainier and Princess Grace had been married in 1956. Because his death occurred shortly after that of Pope John Paul II, Rainier's death was overshadowed in the media. "See also: List of titles of the Monegasque Crown" 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
Honoré III, Prince of Monaco Honoré III, Prince of Monaco Prince Honoré III, Prince of Monaco (10 November 1720 – 21 March 1795) ruled as Prince of Monaco and was Duke of Valentinois from 1731 to 1793. Honoré was the son of Louise Hippolyte, Princess of Monaco and her husband Prince Jacques. Honoré was born on 10 November 1720 On 20 May 1732, he moved to Hôtel Matignon in Paris with his father and remained there, even after the proclamation in 1733 of him as Prince of Monaco. Antoine Grimaldi, le Chevalier de Grimaldi, acted as regent for the prince between 1732 and 1784, when