Zara Phillips and Kate Middleton Celebrate Silver Medal

The Royal family including Kate Middleton has returned London's Greenwich Park to cheer on Zara Phillips during the 2012 Summer Olympics Eventing Team Jumping final on Tuesday.

Phillips, Queen Elizabeth II's granddaughter and cousin to Prince William and Prince Harry, completed the decisive stage in the equestrian eventing in south-east London today.

Middleton and her husband Prince William showed support for Phillips in the stands with laughs and applause. Also beside the Royal couple was Prince Harry, Camila the Duchess of Cornwall, and Phillips' proud mother, Princess Anne.

Middleton donned the same navy blazer she wore to Monday's equestrian event, and paired the coat with a blue and white nautical striped top. The Duchess of Cambridge sat between her husband and brother-in-law Prince Harry.

The Royals were not the only ones cheering for Phillips, as the crowd erupted at her finish and waved Union flags.

The 31-year-old made her Olympic debut Sunday riding High Kingdom as part of a three-discipline eventing competition.

Of the crowd, Phillips said, "It's incredible, it gives you a massive lift as you come into the arena," according to the Daily Mail. "We're really grateful to everyone who has come here to cheer us on."

Team Great Britain earned a silver medal in the Team Eventing Jumping Final, in no small part because of Phillips' riding skills.

The former world and European eventing champion is 14th in line to the British throne. Phillips is married to rugby player Mike Tindall, whom she was introduced to by her cousin, Prince Harry.

Zara Phillips became a trending topic on Twitter Tuesday as Great Britain celebrated their win.

"A silver medal for Great Britain in team equestrian eventing is absolutely brilliant," wrote Matthew. "Well done to Mary King, Tina Cook & Zara Phillips."

Polly posted, "Congratulations! to Zara Phillips & High Kingdom. @TeamGB wins a silver medal in Team Eventing. #Equestrian #Olympics #London2012"

Although Phillips and Team GB won silver for team eventing, the Royal family member did not qualify for individual eventing.