Sorry Kate and Wills, but this has to be the most iconic wedding of all time.
The Philadelphia born actress was a Hollywood star, Alfred Hitchcock's muse and fashion icon.
She became royalty in a fairytale wedding when she married Rainier III, Prince of Monaco, on April 19, 1956 - which made her Princess consort of Monaco.
Excitement leading up to the couple's nuptials was huge and it kept them permanently in the news, reports Life magazine.
Her wedding dress goes down as one of the most famous gowns ever worn by a bride and continues to influence bridal fashion - including inspiring Kate Middleton's own wedding dress by Alexander McQueen.
Princess Grace's dress was created by MGM's costume designer Helen Rose and consisted of an intricate lace bodice embroidered with seed pearls, a full skirt of ivory peau de soie and a train of almost a metre which was described as 'flowing like a river of whipped cream among the plush red floor.'
Underneath she wore two petticoats and topped it off with a fragile lace veil. Swoon.
Prince Rainier wore a military style uniform which he designed himself.
After the wedding, the couple started a family immediately (nine months and four days later to be precise!) with the birth of Princess Caroline. The couple were married for 26 years and had two more children before Grace Kelly was tragically killed in 1982 from injuries she sustained in a car accident.
The Prince never remarried and died in 2005. Both are buried in the Grimaldi family vault, inside the Monaco cathedral where they married.
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