In the 1940s and 1950s, Rainier had a ten-year relationship with the French film actress
Gisèle Pascal, whom he had met while a student at Montpellier University, Rainier established a postal museum in 1995: the
Museum of Stamps and Coins, in Monaco's
Fontvieille district by using the collections of the Monegasque princes
Albert I and
Louis II. The prestigious philatelic collectors organization, Club de Monte-Carlo de l'Élite de la Philatélie, was established in 1999 under his direct patronage. The club is headquartered at the postal museum, and its membership restricted to institutions and one hundred prestigious collectors. Rainier organized exhibitions of rare and exceptional postage stamps and letters with the club's members.
Marriage and family The Prince met
Academy Award–winning actress
Grace Kelly, in 1955, during a photocall at the Palace scheduled to support her trip to the
Cannes Film Festival. After a year-long courtship described as containing "a good deal of rational appraisal on both sides," Prince Rainier married Kelly in 1956. The union was met with mass attention from the public, and was described as the "wedding of the century" and the "world's most anticipated wedding" by the media. The civil ceremony took place at the Palace on 18 April, with the religious wedding being held on 19 April at the
Saint Nicholas Cathedral. Rainier wore a military dress of his own design, based on the uniforms of
Napoleon Bonaparte. Presided over by Bishop Gilles Barthe, the marriage was broadcast by
MGM Studios, and viewed by over 30 million people across the globe. The couple honeymooned in the
Mediterranean on their yacht,
Deo Juvante II. Princess Grace gave birth to their first child,
Princess Caroline, on 23 January 1957. Their second child and heir,
Prince Albert, was born on 14 March 1958. Their youngest,
Princess Stéphanie, was born 1 February 1965, with all children having been delivered at the Palace. In 1979, the Prince made his acting debut alongside the Princess in a half-hour independent film,
Rearranged, produced in Monaco. After its premiere in Monaco, Princess Grace showed it to
ABC TV executives, in New York in 1982, who expressed interest if extra scenes were shot. Later that year, Grace died in a car crash caused by a
cerebral hemorrhage, making it impossible to expand the film for an American release. After Grace's death, Rainier refused to remarry. He established the
Princess Grace Foundation-USA in 1982 in her honor, to support fledging American artists. ==Illness and death==