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Olympics Day 4 - Equestrian

Zara Phillips of Great Britain riding High Kingdom knocks a rail in the Show Jumping Equestrian event on Day 4 of the London 2012 Olympic Games at Greenwich Park on July 31, 2012 in London, England. (Photo by Jamie Squire/Getty Images)

British royals attend Olympic Equestrian

Members of the British royal family attend the Olympic equestrian events to watch Zara Phillips, the granddaughter of Queen Elizabeth II, win a silver medal for Great Britain. -- By Carla Thorpe, Yahoo! Sports