Paul McCartney and Nancy Shevell's Wedding: 5 Things to Know

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From the bride's dress (designed by Stella McCartney) to the guests in attendance, find out more details of the Beatles' nuptials.

Paul McCartney married for the third time in London on Sunday.

The Beatle, 69, said "I Do" to Nancy Shevell, 51, a New Yorker who sits on the Metropolitan Transit Authority's board.

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Here are a few things you may not know about the couple’s wedding:

1. They were greeted by hundreds of fans and photographers ahead of their London ceremony, held at Old Marylebone Town Hall. There was a lot of speculation they would wed there after photographers snapped pictures of catering equipment being taken inside earlier.  About 30 guests attended, including Beatles' bandmate Ringo Starr and The Views' Barbara Walters, who reportedly set up the couple on their first date. She is Shevell's second cousin.

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2. McCartney's daughter, Stella McCartney, designed the newlyweds' outfits for the day. McCartney opted for a simple dark suit and silver-pewter tie, while Shevell donned a classic long-sleeved, cocktail-length white dress with a flower tucked into her hair.

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3. McCartney's daughter, Beatrice, (with his second wife, Heather Mills), served as flower girl for the ceremony.

4. McCartney and Shevell went public with their relationship in 2007, around the time his divorce from Mills ended. According to reports, McCartney and Mills' acrimonious split resulted with McCartney paying her $48.6 million. McCartney was wed to his first wife, Linda, for nearly 30 years, until she died of breast cancer in 1998.

STORY: Nancy Shevell's Wedding Dress Designed by Paul McCartney's Daughter Stella McCartney

5. Shevell's first marriage was to attorney Bruce Blakeman, who put in an unsuccessful bid for New York's Republican Senate seat in 2010. They have a 19-year-old son, Arlen. "I wish Nancy and Paul well, and that’s it,” Blakeman  told the New York Observer. “Nancy’s a great mother, and Paul treats my son very nicely.”