Grace Kelly became the Princess of Monaco following her lavish wedding to Prince Rainier III of Monaco. She wore an elegant dress that became famous around the world. Tonight on the Channel 5 documentary Grace Kelly: Hollywood Princess, a royal expert explained how it may have inspired Kate Middleton‘s wedding gown.

“It was a gift from her former studio, created by MGM’s chief costume designer Helen Rose, who had worked on two of Grace’s previous films.”

The dress had a high neck and a lace bodice with long sleeves.

It had a button down front and tapered in at the waist before continuing into a full skirt.

Speaking in the documentary David Emanuel, who helped design Princess Diana’s wedding dress, explained Grace’s gown took many weeks of preparation.

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David said: “I understand it took three dozen seamstresses three weeks. The estimated cost back then of $7,200.”

As it was designed in the 1950s, it is likely it would be worth much more now.

Not only did the dress become a desirable style for all future brides, it may have inspired British royalty.

Kate Middleton married Prince William at Westminster Abbey on April 29, 2011.

“It’s a very tight bond with your designer so I wouldn’t be surprised if she referenced Grace’s dress.”

Like the dress worn by Grace, Kate’s gown had a fitted top and long lace sleeves.

The dress also flowed into a long skirt like that of Princess Grace’s.