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
Louis II, Prince of Monaco unhappy with her husband. Shortly thereafter, she left the country permanently, and the princely couple's marriage was annulled in 1880. Louis was raised in Germany by his mother and stepfather, Count (later Prince) Tassilo Festetics von Tolna, along with his eldest half-sister, Maria-Mathilde (later grandmother of Princess Ira von Fürstenberg), and did not see his father until age 11 when he was obliged to return to Monaco to be trained for his future princely duties. Louis' father, Prince Albert I, was a dominating personality who had made Monaco a center of cultural activity and whose intellectual achievements were recognized around