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Seventy years ago, Monaco became the setting for the “wedding of the century” between Hollywood star Grace Kelly and Prince Rainier III.

At precisely eleven o’clock on 18 April 1956, Grace Kelly became Princess of Monaco. In that instant, Alfred Hitchcock’s favourite actress ceased to belong to Hollywood and became part of European dynastic history. By marrying Grace Kelly, Rainier III gave Monaco unprecedented international visibility and helped redefine the image of a modern monarchy—glamorous, media-savvy and resolutely contemporary. Much of the world discovered a tiny Mediterranean Principality that, only a few months earlier, many Americans would have struggled to locate on a map.

Paris Match famously captured the encounter

The fairy tale truly began on 6 May 1955, when Grace Kelly, then attending the Cannes Film Festival, visited the Prince’s Palace. Paris Match famously captured the encounter. The image seemed almost too perfect: an American star at the height of her fame and an elegant, enigmatic bachelor prince. In less than a year, their romance had become an international sensation. Newspapers around the world followed the wedding preparations with a fascination that extended far beyond the society pages.

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“I’m very happy”

Grace Kelly’s voyage to Monaco remains one of the most romantic episodes of the story. On 4 April 1956, she boarded the SS Constitution in New York, accompanied by her family, friends and dozens of journalists. Before departure, in an atmosphere of almost surreal calm despite the crowds and the microphones thrust towards her, she simply remarked: “I’m very happy.”

Aboard the Deo Juvante II

On 12 April, when the ocean liner appeared off the coast of Monaco, the Principality held its breath. Tens of thousands of people crowded the quays, ramparts and breakwaters. Ship sirens sounded, while red and white carnations rained from the sky, dropped from Aristotle Onassis’s seaplane. Amid the excitement, Grace Kelly appeared wearing the now-famous white hat that would become almost as iconic as her wedding dress. Rainier helped her aboard the Deo Juvante II. The scene seemed straight out of a CinemaScope film—which, a few days later, it effectively became during the official wedding celebrations.

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More than 1,600 journalists

Monaco suddenly found itself at the centre of the world’s attention. More than 1,600 journalists travelled to the Principality, more than had attended the coronation of Queen Elizabeth II. Photographers, reporters and cameramen competed to capture every gesture of the princely couple. Some disguised themselves as priests to gain access to the cathedral, while others spent hours waiting in the rain in the hope of securing an exclusive photograph.

Hollywood followed the event

Among the guests at this extraordinary wedding were leading political figures and some of the biggest names in American cinema. Seated in Monaco Cathedral were, among others, Ava Gardner, who had come to support her Mogambo co-star, and poet, playwright and filmmaker Jean Cocteau, who wrote a tribute to the newlyweds. Hollywood followed the event with fascination: MGM understood that it was losing one of its brightest stars and responded by turning the occasion into a spectacle of exceptional scale. The guest list also included major political figures, among them François Mitterrand, then Minister of Justice of the French Republic. The combination of European aristocracy, international diplomacy and Hollywood glamour gave the wedding a truly unprecedented dimension. 

@Direction de la communication / Manuel Vitali

An exceptional exhibition

Seventy years after the royal wedding, Monaco continues to celebrate this legacy. From 8 June 2026, an exceptional exhibition at the Prince’s Palace will allow visitors to discover personal belongings, photographs, archives and historical documents relating to the marriage of Rainier III and Grace Kelly, displayed within the State Apartments. Visitors will also have the opportunity to enter the Throne Room, where the civil wedding ceremony took place on 18 April 1956. 

A CinemaScope film

The summer of 2026 will also mark the rebirth of a long-forgotten treasure: The Monaco Wedding, a CinemaScope film shot during that historic week and unseen since 1958. The fifty original 35 mm reels lay undisturbed in the Palace archives until their rediscovery in August 2022 during an inventory undertaken at the initiative of H.S.H. Prince Albert II of Monaco. The Sovereign subsequently commissioned an ambitious restoration project that required several years of work before being completed in early 2026. A fitting revival at a time when the Principality is marking the seventieth anniversary of what remains, in the collective imagination, the wedding of the century.

 

@manuel Vitali / Direction de la communication
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