Zara Phillips, Royal Bride-to-Be

Zara Phillips takes part in the annual Artemis Challenge around the Isle of Wight on Aug 3, 2010 in Cowes, England. Phillips, an accomplished equestrian, is the second child of Queen Elizabeth's daughter Princess Anne and first cousin of Princes William and Harry. She is 12th in line to the throne.

Photos: The Young Royals

Zara Phillips, right, and her fiance, rugby player Mike Tindall, after announcing their engagement, in Gloucestershire, England, Tuesday Dec. 21, 2010.

A view of Zara Phillips' engagement ring after her engagement was announced, in Gloucestershire, England, Tuesday Dec. 21, 2010.

Zara Phillips, right, and her fiance Mike Tindall, after announcing their engagement, in Gloucestershire, England, Tuesday Dec. 21, 2010.

Zara Phillips and boyfriend, rugby player Mike Tindall attend the Sport Industry Awards on May 13, 2010 in London.

Photos: The Young Royals
Photos: Power Weddings

Zara Philips rides during the jumping test event on day four of Badminton Horse Trials on May 3, 2010, in Badminton, England.

Photos: The Young Royals

Zara Phillips is seen at the 2009 Emirates Melbourne Cup Day at Flemington Racecourse on Nov. 3, 2009, in Melbourne, Australia.

Photos: The Young Royals

Queen Elizabeth II, right, talks to her granddaughter Zara Phillips, sister of Peter Phillips, as they watch Peter Phillips and Canadian Autumn Kelly leave St. George's Chapel in Windsor, England, after their marriage ceremony, Saturday, May 17, 2008.

Photos: Peter Phillips' Royal Wedding
Photos: The Young Royals

Zara Phillips talks to cousin Prince Harry during the wedding of her brother, Peter Phillips, to Autumn Kelly at St George's Chapel in Windsor, May 17, 2008.

Photos: Peter Phillips' Royal Wedding
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Photos: Prince Harry

Zara Phillips, Prince William and Prince Harry attend the Christmas Day service at Sandringham Church on Dec. 25, 2009, in King's Lynn, England.

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Photos: Prince William
Photos: Prince Harry

Prince William, Prince Harry and Zara Phillips are seen outside Sandringham Church after the Christmas Day service on Dec. 25, 2009, in King's Lynn, England.

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Photos: Prince William
Photos: Prince Harry

Britain's Princess Anne, Prince Harry and Zara Phillips, Princess Anne's daughter, from left, leave St Georges Chapel, Windsor England, Saturday April 9, 2005, after seeing the blessing service celebrating the wedding of Prince Charles and Camilla Duchess of Cornwall.

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Photos: Prince Harry

Zara Phillips and Mike Tindall attend day 3 of the Badminton Horse Trials on May 2, 2010, in Badminton, England.

Photos: The Young Royals
Photos: Power Weddings

Zara Phillips is seen at the Lee Valley Riding Centre on Sept. 25, 2007, in London.

Photos: The Young Royals

Zara Phillips and fiance rugby player Mike Tindall attend day 3 of Cheltenham Races on March 15, 2007, in Gloucestershire, England.

Photos: The Young Royals
Photos: Power Weddings

Zara Phillips attends Ladies Day at the Ascot Races on June 21, 2007, in Ascot, England. Photos: The Young Royals